NefMoto

Hello

I bought car named in subject. I converted it to ME7.5 passat ecu 4B0906018Cg.
I am using 4B0906018CH file with robs kp file.
Injectors: 0280156065 263.3cc at 3Bar. With Passat fuelrail there was 4Bar FPR so 304cc ?
Exhaust: Catless 3" DP
Intake: Cold air intake
Should i change KRKTE to 0.10761   as all the stock files seem to be 0.10478 ?
My goal is to safely tune car for stock rods etc and learn in process.
So far i have modified LDRXN and LAMFA. Made first log and seems that Actual boost is higher than Requested boost, what could be the problem ?
Maybe someone could suggest LDRXN for starter. At Tuning wiki i was reading that i should use RS4 B5 maps. But LDRXN seems a bit overkill .

 

You should tweak pid maps aswell
It depends on turbo youve used but usually it's pretty tricky job for a novice
Start with kfldimx so maybe it's enough for a some point
And get a bigger injectors
386 from tt225 enough if it's non returnless fuel system

Have you actually used a 025 though?

I have fuel pressure regulator on fuel rail. So it is non returnless ?
Turbo which car came with is k04-025. As i understand there is no point to modify with these injectors as they cap out ?
I will try to log them today. Is the variable for injectors ti_b1 ?
K04-025 is still on the car.
And thank You for helping.

I made some runs in 3rd gear. If i understand correctly at the end i run out of fuel due to injector being over 100% 

You need to pull boost significantly.

Made some adjustments to LDRXN but its seems that i need alot more.
Would like some opinions on Afr. Is it ok that line is zig-zag ? I have seen some of the logs where they are quite even.

AFR is zigzag, because it's running in BTS and probably knocking.

He really needs to log timing and EGTs

Made changes to Lamfa to smoothen it out. Lowered boost considerably. Set TAGBTS to 999.
Made new runs . Wanted to add, that i do not have VVT right now nor it is coded out. Can it interfere in some way or only codes? I am not familar with timing so good, what should i log ?
Comments are welcome on last log.
Thank You

1) You're going to have a tough time tuning timing if you dont log load
2) Log PID variables to diagnose the overboost on ramp.
3) You don't appear to have any knock, you can significantly improve timing
4) You're no longer running out of injector up top, that redline boost looks fine

Vvt should be coded out due to fuel trims doesn't work in that condition

Unless it's on race gas IMO it's too lean.
Killing BTS = killing protection against bad fuel.

I use 98 octane ONLY

until you get a bad batch :)

So it is a bad thing that i changed TABGBTS ? Original value was 850. I will log timing and load tomorrow. Main Question is, is it safe to drive like it is now ?
AFR 12.5 i took from stage 1 community project, as it was stated, it is safe and enough for small turbo.

You need to read a little more about engine controls and don't believe what you read on forum.
With that lambda you can easily melt a 1.8T on autobahn even with a small turbo. Especially if you get a bad batch of gas.

I mean you can run it if you have BTS or ATR active. Sounds like you have neither, so ...

BTS will kick in if EGTs go over 999 . To be safe, would 11.8-12.00 afr be good ? I think i have misunderstood some things maybe. As in Stage 1 community project they want to stay out of BTS enrichment so that LAMFA table is used for fueling.  As i am learning right now, every opinion is valuable. Thank You
Richier afr should knock egts down a bit. Will log timings also.

It is modeled EGT, you have changed a lot of things in the engine, do you really think it corresponds actual EGT?
Do you even know in your case which EGT it relates to? taikr? tabgm? 1000C in CAT is very different from 1000C in manifold.
1000C in manifold is engine close to death, 1000C in cat is molten cylinders.

Well hey, have fun. Maybe it kicks in that it isn't a computer game when you have to spend some money on engine rebuild :D

Well as i said, arrogant or not, every opinion is valuable to me, so thank you for input.
1. I know it is calculated EGT. Thats why i ordered Egt gauge.
2. It seems EGT relates to tabgm, as changes to tabgm effected the result.
3. I am learning from testing and from this forum. I dont drive on autobahn fullthrottle with test software.
4. Alot information has been taken from Stage 1 community project , where alot reputable people helped.

The "community" stuff on this forum is honestly not really something you would want to run.

I also recommend you look what the definition of tabgm is, and what happens to your engine if that were ever really to reach 1000C.

Had to log in 2nd gear today. If logged data is bad, please let me know.
I made Lamfa more rich and more smooth and returned TABGBTS to stock 850 .
Seems BTS is kicking in and injectors are maxed again.
Yet again, I appreciate this forum and all help. Not here to argue, but to learn.
FYI: Got 386cc injectors and 3bar FPR on shelve. But my goal is to get it right with hardware i have and then upgrade.
Thanks in advance.

So i have decided to start from scratch.  I installed 386cc injectors and 3bar FPR
I copied also TVUB and KRKTE from BAM audi map. I have one question regarding Winols. When i copy values, why is winols correcting values to another number ? Even when i type them in they still change.
Anyway for starter i would need help diagnosing overbvoost situation. Engine Load Actual is also higher than Engine load requested.'
I also logged boost pid-s. But i am not quite sure what to look for.
Turbo : k04-025

Log

Looks good except for timing at peak torque and IMX. See if you can avoid single digits w/o knock intervention.

for IMX, it should be obvious from this what is wrong, you can decrease IMX or just have your req boost follow what is going on.

It runs, now it needs tuning.
I don't know why nyet says it "looks good". Looks like a stock file.
For tuning might want to additionally log fr_w, tats_w.

Need get rid of ignition oscillation, tune fuel request properly, linearize the pid...

Made some changes to timing at peak load. Dont see any knocks. Made changes to LAMFA table.
Logged  fr_w, tats_w. as per pry suggestion. I am not quite sure how to get rid of oscillation. Need to do some research  :)
Log Attached.

I have been reading quite a bit about IMX and i have compared some of the files. First i tried to copy RS4 IMX to my file. Result was huge overboost. I lowered then imx and got near my requested.
My question is, in RS4 file, for exmaple  in all columns all values are the same. For 1000hpa its 90% for 900hpa its 81% etc... In My file first 4 rows started with 95 in the middle 20-68 and at the end ~80 .
For single turbo car, is it for faster spool ? My qoal here is to understand this map and then start tuning boost as i understand if i add boost i need to calibrate IMX anyway .

As noone have answered, i had to experiment by myself. For a start made at least 6 logs only changing IMX. At the end i got my requested boost follow my actual boost. As i wanted smooth boost line i was capped by IRL / IOP. So i used ME7 tuner wizard to rescale my IRL / IOP / KWZWOP/2 and set boost to 1bar.  Added some timing to peak torque, made lamda more rich. So far, car drives good. If someone could, please check my log, what could be done better.
Some questions also :
1) What is the limit TQ for stock AEB rods? I have heard 300NM from wheels and 400NM from wheels, thats why i am asking.
2) What is the limit ( g/s ) for stock AWM maf? As i myself think i have reached its max 180g-190g .
3) Have not yet understood how to get rid of ignition ocilliation.
4) Its seems that i need to buy new intercooler, as IAT are getting higher. ( I have AJL stock )
5) From the last log, it seems there is 1 knock. Should i try to add fuel or touch timing ?
Logs below

AEB rods are part number 027198401B which is found in many 058 blocks  including AEB and the strongest production 1.8t which is BFV and that has 240 hp and 320nm and that is with a spiky ko4. So that means it will take ATLEAST that with a proper tune. 058 rods are much stronger than the 19mm pin one because of the pin obviously and the bolts are pressed into the rod instead of being complete separate vs 06a blocks. I dont know why VAG went with weaker rods later on only to switch back to older ones on higher HP motors, prolly cause of costs or whatever.

Second is that Formula Palmer Audi ran 1.8T production engines in racing with a Garret T34 producing 300 hp and unkown torque. They had 1 engine failure from 1000 race starts according to David Ingram.

You can even squeeze out more if you open up the rings a tiny bit.

"An FPA car generates 300bhp from a 1.8-litre turbocharged Audi engine, which incorporates an overboost feature that increases power to 360bhp for an eight second burst. On the push of a button, each driver can call upon extra power to help complete a pass, or defend a challenge."

"We are excited about the future and proud that only once in over 1000 race starts has one of our 1.8T engines failed, despite producing over 300 bhp and remaining fundamentally standard". - David Ingram

Thanks for the info.
I have a  problem which i dont understand.
My AWM maf Reads right now 188 g/s and sensor voltage 4.6 - 4.7 and never went above. So i upgraded to TT maf.
What combination should I use ?  3" Maf with AWM sensor or with BAM sensor ? I have already changed  MLHFM ,MLMAX from BAM.
I ask this because at start i tried 3" housing and awm sensor. Result was 152 g/s and 4.1V . It seemed strange too, should it not be greater than 188 g/s ? Anyway car drove good and fuel maps were good.
After that i switched to TT sensor and the result is : 163 g/s ~4.2V . Fuel maps were not so good.
The reason i was switching sensors was that my logic told me that the readings should be greater than 188g /s as from logs it seemed maf was limiting factor.

Use you original MAF in bigger housing, and scale it right
http://nefariousmotorsports.com/forum/index.php?;topic=4839.0
BDW. Original MAF in original housing schpuld br able to read up to 220 g/s

Thank You ! Thats why i asked last post. Because i was not able in any way to go above 188 g/s and fuel acted wierd in 180 - 188 area.

log sensor voltage , and you'll find out.

never goes above voltage 4.6 - 4.7, does not matter what i do.

Well you are maxed out out MAF then. Either upgrade housing or the whole MAF. you will need to rescale maps , like said above.

Thank You  :) Got help I needed already Yesterday. Just wanted to know if really maf was maxed at 4.7V.

Can someone help with map location MLOFS
file : 4B0906018CH 360101

Post a bin of original file I will find it...
BDW. why you need that map?

I rushed for the exe rescaling file too soon. After just using mafadjust, log file seems still a little bit strange. I started to read wiki and found out that i need MLOFS also for rescaling.
File in attachment.

No you dont need to change that map, you read it wrong. Only change it if changing from a hitachi to bosch maf.

Thank You for the info. So i need to use only mafadjust.exe ? I will check if i made some mistakes and try it again. Seemed wrong as, after scaling maf was reading 166 g/s. Old one went to 180-190 g/s.
Sorry for dumb questions, as Maf was not limiting me before and now it is, i am starting to learn it  ;D

Well i guess i messed something up with ID numbers.

Old : 0   144.4   145.1   146   147   147.7   148.6   149.3   150   150.9   151.6   152.3   153   153.8   154.5   155.2   155.9   156.6   157.4   158.1   158.8   159.5   160.3   161   161.7   162.3   163   163.7   164.3   164.7   165.4   166   166.7   167.5   168   168.6   169.1   169.8   170.4   171.1   171.7   171.9   172.5   173.2   173.8   174.4   174.7   175.4   176   176.3   176.9   177.4   178   178.3   178.9   179.5   179.7   180.3   180.6   181.2   181.8   182   182.6   183.1   183.3   183.9   184.2   184.8   184.9   185.5   185.9   186.2   186.7   187   187.5   187.8   188.3   188.5   189.1   189.3   189.8   190.3   190.6   191   191.3   191.7   192   192.6   192.9   193.5   193.9   194.2   194.8   195   195.6   196.1   196.5   197.1   197.5   197.8   198.5   198.9   199.4   200   200.4   200.7   201.2   201.5   202.1   202.7   203   203.6   204   204.3   204.9   205.1   205.7   206.3   206.6   207.2   207.6   208   208.5   208.8   209.3   209.8   210   210.5   210.9   211.2   211.6   211.9   212.4   212.8   213.1   213.5   213.8   214.4   214.8   215.1   215.5   216   216.4   216.7   217.3   217.7   218.1   218.6   219.1   219.6   220   220.3   221   221.4   221.7   222.5   222.9   223.5   223.9   224.5   225.1   225.3   226.1   226.6   227.2   227.5   228.2   228.8   229.4   230   230.4   231.1   231.8   232.4   233   233.7   234.3   234.7   235.4   236.2   236.9   237.6   238.2   238.9   239.6   240.2   240.9   241.6   242.4   243.1   243.8   244.5   245.3   246   246.7   247.4   248.1   248.9   249.6   250.3   251   251.7   252.6   253.3   254.1   254.9   255.6   256.4   257.1   257.8   258.8   259.7   260.4   261.3   262   262.9   263.6   264.3   265.5   266.3   267.2   267.9   269.1   269.9   270.8   271.9   272.8   273.7   274.8   275.8   276.9   277.9   278.7   279.9   280.9   281.9   283.1   284.1   285.2   286.2   287.4   288.7   289.8   291   292   293.2   294.5   295.6   296.8   298.1   299.2   300.4   301.8   303.1   304.3   305.7   306.9   308.3   309.6   310.8   312.2   313.6   314.8   316.2   317.7   319.1   320.6   322   323.5   324.9   326.3   327.8   329.2   330.7   332.1   333.6   335.3   336.7   338.5   339.9   341.5   342.9   344.7   346.4   348   349.4   351.2   352.9   354.5   356.2   357.9   359.5   361.3   363.1   364.9   366.6   368.2   369.9   371.8   373.5   375.4   377.1   379   381   382.9   384.8   386.8   388.7   390.5   392.7   394.7   396.6   398.8   400.6   402.8   405   407.1   409.3   411.5   413.6   415.8   418   420.4   422.6   425   427.3   429.5   432   434.4   436.7   439.2   441.6   443.9   446.4   449   451.4   454   456.5   459.1   461.8   464.4   467   469.8   472.4   475.2   477.8   480.7   483.5   486.1   488.9   491.8   494.7   497.6   500.5   503.4   506.3   509.4   512.3   515.3   518.4   521.4   524.6   527.8   530.8   534.1   537.3   540.5   543.8   547.1   550.3   553.7   557   560.4   563.8   567.3   570.8   574.4   577.7   581.3   584.9   588.5   592.1   596   599.6   603.4   607.1   610.9   614.8   618.5   622.4   626.3   630.2   633.9   638.1   641.9   646.1   650.1   654.1   658.3   662.5   666.7   670.7   675.1   679.3   683.6   687.9   692.4   696.7   701.3   705.7   710.1   714.6   719.1   723.7   728.3   732.8   737.5   742.2   747.1   751.8   756.4   761.5   766.4   771.3   776.4   781.1   786.2   791.1   796.1   801.2   806.4   811.4   816.8   821.9   827.1   832.2   837.7   843   848.5   853.8   859.5   865.1   870.4   876.2   882   887.7   893.5   899.3   905.1   910.8   916.7   922.8   928.9   934.6   941   946.9   953.1   959.2   965.7   971.9   978.1   984.4   990.9   997.4   1003.7   1010.2   1016.9   1023.4   1029.9   1036.8   1043.4   1050.1   1057   1063.8   1070.7   1077.5   1084.5   1091.3   1098.4   1105.6   1112.7   1119.9   1127   1134.2   1141.4   1148.7   1156.1   1163.3   1170.8   1178.2   1185.7   1193.2   1200.7   1208.3   1216   1223.6   1231.1   1239.1   1246.9   1254.8   1262.9   1270.8   1278.7   1287   1295.2   1303.3   1311.6   1319.9   1328.4   1336.7   1345.1   1353.8   1362.3

New with 66 ID to 76 ID :-   0   145.7   146.4   147.3   148.1   148.8   149.7   150.4   151.1   151.9   152.6   153.3   154.2   154.9   155.6   156.3   157   157.7   158.4   159.1   159.8   160.5   161.1   161.8   162.5   163.1   163.8   164.5   165.1   165.6   166.3   166.9   167.6   168.2   168.7   169.3   169.9   170.6   171.1   171.7   172.3   172.7   173.3   173.8   174.4   174.9   175.4   175.9   176.5   176.9   177.5   177.9   178.5   178.9   179.3   179.9   180.3   180.7   181.2   181.7   182.2   182.6   183   183.4   183.8   184.3   184.7   185.1   185.4   185.8   186.2   186.7   187   187.4   187.8   188.2   188.5   188.9   189.4   189.6   190.1   190.5   190.8   191.2   191.6   191.9   192.3   192.7   193.2   193.6   194   194.4   194.9   195.3   195.7   196.1   196.7   197.1   197.5   198   198.5   199   199.5   200   200.4   200.8   201.2   201.6   202.2   202.6   203   203.5   203.9   204.3   204.7   205.2   205.7   206.1   206.6   207   207.4   207.8   208.3   208.7   209.1   209.5   209.8   210.2   210.6   210.9   211.3   211.6   212   212.5   212.9   213.2   213.6   214   214.4   214.7   215.1   215.6   216   216.4   216.8   217.3   217.7   218.1   218.7   219.1   219.5   219.9   220.5   220.9   221.3   221.9   222.3   222.9   223.3   223.9   224.4   224.9   225.4   226   226.5   227   227.5   228.1   228.7   229.2   229.8   230.5   231   231.6   232.2   232.9   233.4   234   234.7   235.3   236   236.7   237.2   237.9   238.6   239.2   239.9   240.6   241.3   242   242.7   243.4   244.1   244.8   245.5   246.2   246.9   247.6   248.3   249.1   249.8   250.5   251.3   252   252.7   253.6   254.3   255   255.8   256.5   257.4   258.2   258.9   259.7   260.4   261.3   262.1   262.8   263.8   264.7   265.5   266.4   267.3   268.2   269.2   270.2   271   272   273   274   274.9   275.9   276.9   277.9   279   280   281   282.1   283.2   284.2   285.3   286.5   287.6   288.7   289.9   291   292.1   293.4   294.5   295.6   296.9   298   299.3   300.5   301.8   303.1   304.3   305.6   306.9   308.1   309.4   310.8   312.1   313.5   314.8   316.2   317.6   319   320.4   321.8   323.2   324.6   326   327.4   329   330.4   331.9   333.5   335   336.4   338   339.5   341.2   342.8   344.3   345.8   347.5   349.1   350.8   352.5   354   355.7   357.4   359.1   360.8   362.4   364.1   365.8   367.5   369.3   371.2   372.9   374.7   376.5   378.5   380.3   382.1   384.1   385.9   387.9   389.9   391.9   393.8   395.8   397.9   399.9   402   404.1   406.2   408.3   410.6   412.7   414.9   417.2   419.4   421.7   423.9   426.2   428.6   430.8   433.2   435.6   438   440.4   442.9   445.3   447.8   450.2   452.8   455.3   457.8   460.5   463   465.7   468.4   470.9   473.7   476.4   479.1   481.9   484.6   487.4   490.2   493   496   498.8   501.7   504.5   507.5   510.5   513.6   516.5   519.6   522.7   525.8   528.9   532   535.2   538.5   541.7   544.9   548.2   551.4   554.8   558.2   561.5   565   568.4   571.9   575.5   579   582.5   586.1   589.7   593.3   597   600.6   604.4   608.1   611.9   615.7   619.5   623.3   627.2   631   635   638.9   643   646.9   651   655.1   659.2   663.4   667.5   671.7   675.9   680.3   684.5   688.9   693.1   697.4   701.8   706.3   710.7   715.2   719.7   724.2   728.8   733.5   738.1   742.7   747.5   752.3   757.1   762   766.8   771.7   776.5   781.4   786.4   791.4   796.3   801.4   806.5   811.5   816.6   821.8   827   832.4   837.7   843.1   848.5   853.9   859.5   865   870.6   876.3   881.9   887.5   893.3   899   904.8   910.7   916.5   922.5   928.5   934.4   940.4   946.6   952.7   958.8   965   971.2   977.6   983.7   990.1   996.5   1002.9   1009.3   1016   1022.4   1029   1035.7   1042.3   1049   1055.8   1062.5   1069.3   1076.2   1083.1   1090   1097   1103.9   1110.9   1118   1125.1   1132.3   1139.5   1146.7   1153.8   1161.2   1168.5   1175.8   1183.2   1190.7   1198.2   1205.6   1213.2   1220.8   1228.5   1236.4   1244.2   1252   1259.9   1267.9   1276   1284   1292.1   1300.3   1308.5   1316.8   1325.1   1333.4

Stock : -   0   161.6   162.1   162.7   163.3   163.8   164.4   164.9   165.4   166   166.5   167   167.6   168.1   168.6   169.1   169.6   170.1   170.6   171.1   171.6   172.1   172.5   173   173.5   173.9   174.4   174.9   175.3   175.7   176.2   176.6   177.1   177.5   177.9   178.3   178.7   179.2   179.6   180   180.4   180.7   181.1   181.5   181.9   182.3   182.6   183   183.4   183.7   184.1   184.4   184.8   185.1   185.4   185.8   186.1   186.4   186.7   187.1   187.4   187.7   188   188.3   188.6   188.9   189.2   189.5   189.7   190   190.3   190.6   190.8   191.1   191.4   191.7   191.9   192.2   192.5   192.7   193   193.3   193.5   193.8   194.1   194.3   194.6   194.9   195.2   195.5   195.8   196.1   196.4   196.7   197   197.3   197.7   198   198.3   198.6   199   199.3   199.7   200   200.3   200.6   200.9   201.2   201.6   201.9   202.2   202.5   202.8   203.1   203.4   203.7   204.1   204.4   204.7   205   205.3   205.6   205.9   206.2   206.5   206.8   207   207.3   207.6   207.8   208.1   208.3   208.6   208.9   209.2   209.4   209.7   210   210.3   210.5   210.8   211.1   211.4   211.7   212   212.3   212.6   212.9   213.3   213.6   213.9   214.2   214.6   214.9   215.2   215.6   215.9   216.3   216.6   217   217.4   217.7   218.1   218.5   218.9   219.2   219.6   220   220.4   220.8   221.2   221.7   222.1   222.5   222.9   223.4   223.8   224.2   224.7   225.1   225.6   226.1   226.5   227   227.5   227.9   228.4   228.9   229.4   229.9   230.4   230.9   231.4   231.9   232.4   232.9   233.4   233.9   234.4   234.9   235.4   235.9   236.5   237   237.5   238.1   238.6   239.1   239.7   240.2   240.8   241.4   241.9   242.5   243   243.6   244.2   244.7   245.4   246   246.6   247.2   247.9   248.5   249.2   249.9   250.5   251.2   251.9   252.6   253.3   254   254.7   255.4   256.2   256.9   257.6   258.4   259.2   259.9   260.7   261.5   262.3   263.1   263.9   264.7   265.5   266.4   267.2   268   268.9   269.7   270.6   271.5   272.4   273.3   274.2   275.1   276   276.9   277.8   278.8   279.7   280.7   281.6   282.6   283.6   284.6   285.6   286.6   287.6   288.6   289.6   290.6   291.7   292.7   293.8   294.9   296   297   298.1   299.2   300.4   301.5   302.6   303.7   304.9   306   307.2   308.4   309.5   310.7   311.9   313.1   314.3   315.5   316.7   317.9   319.1   320.4   321.7   322.9   324.2   325.5   326.9   328.2   329.5   330.9   332.2   333.6   335   336.4   337.8   339.2   340.7   342.1   343.6   345.1   346.6   348.1   349.7   351.2   352.8   354.4   356   357.6   359.2   360.8   362.5   364.1   365.8   367.5   369.2   370.9   372.7   374.4   376.2   377.9   379.7   381.5   383.3   385.2   387   388.9   390.8   392.6   394.6   396.5   398.4   400.4   402.3   404.3   406.3   408.3   410.4   412.4   414.5   416.5   418.6   420.7   422.9   425   427.2   429.4   431.6   433.8   436   438.3   440.6   442.9   445.2   447.5   449.8   452.2   454.6   457   459.5   461.9   464.4   466.9   469.4   471.9   474.5   477   479.6   482.2   484.8   487.5   490.1   492.8   495.5   498.2   500.9   503.7   506.4   509.2   512   514.9   517.7   520.6   523.5   526.4   529.4   532.3   535.3   538.3   541.4   544.4   547.5   550.5   553.6   556.7   559.9   563   566.2   569.4   572.6   575.9   579.2   582.5   585.8   589.2   592.6   596   599.5   602.9   606.4   609.8   613.3   616.8   620.4   623.9   627.5   631.1   634.7   638.3   642   645.7   649.5   653.3   657.1   661   664.8   668.8   672.7   676.7   680.7   684.7   688.7   692.8   696.9   701   705.2   709.3   713.6   717.8   722   726.3   730.7   735   739.4   743.8   748.2   752.7   757.1   761.6   766.2   770.7   775.3   780   784.6   789.3   794   798.7   803.5   808.3   813.1   817.9   822.8   827.7   832.6   837.6   842.5   847.5   852.5   857.6   862.7   867.8   872.9   878   883.2   888.4   893.6   898.9   904.2   909.5   914.8   920.2   925.6   931.1   936.7   942.2   947.8   953.4   959.1   964.8   970.5   976.3   982.1   987.9   993.8   999.7   1005.6

Is this reallt catastrophic difference that could mess things up a bit ?

Did everything right with mafadjust and made run. Still reading 160-162g /s.
Could someone check my log and tell me what i am doing wrong ? As my old maf readings were 188 g/s .

Did you measure MAF iner diametar? Schloud BAM have 2.75", and standard 1.8T 2.25"

Second, you have 0.7 bar boost at 6000 RPM with K04, how you think that will result in higher flow than 160 g/s?
Give him boost, than you will have more airflow

Beacuse you have more req looad, and more boost

To get rid of timing oscilation set DARO,DAROS to 100 at last column

Yes, I measured ID on both mafs. AWM one had 66mm and the BAM one had 76mm.
How to determine if maf is scaled correctly ?
EDIT: I took dust protections off mafs and measured in the middle. Yes I have made measuring error  >:(
Right ones _ Awm id 60mm and Bam 70mm. Feels bad.

Please read a S4tuning wiki couple of times, you have there most of answers for your question

Another good MLFHFM sanity check is to log ps_w vs actual boost at WOT - ps_w should generally be slightly below actual boost. If it is over, your MAF is probably overscaled


https://s4wiki.com/wiki/Tuning

Is this considered good ? For the time saving purpose should i  scale it further to get ps_w closer?

slight underscaling is fine if your load doesn't seem too off.

How far off is your KRKTE from theoretical?

I need to study more to answer Your question. There is some wierd spike in fuel log also which came after installing new maf.
I think I took too big bite.

Do NOT DO ANYTHING ELSE until you can answer my question. Full stop.

Why stock MLHFM is scaled to 1005kg/h (~280g/s)@5v but real max actual reading is 220g/s ?  ??? Thank you for reply.

Beacuse MAF offset on BOSCH is 200 kg/h
1000-200= 800 kg/h ~ 220 g/s

At 1V you will see 200 kg/h in your file, but for real that is 0g/s and ECU see it as 0 g/s

Will check LTFT AND STFT with this scaling.

Yes, now I see that in funktionsrahmen. Thank you very much.  ;) How max reading stock a4 maf sensor in 3inch housing ?  Calculator to rescale maf diameter housing work properly for you or need some additional corrections ?  OEM MAF from BAM 225 reading more than a4 sensor in 3inch housing ?

My STFT part are a bit off  -13%  -  +6% and LTFT 2%. ( Will reset and check LTFT again ) So to get them in place i should play with krkte in which case it would be off from my theoretical. So if i understood the subject correclty, my actual KRKTE should be very close to my calculated theoretical. So i guess i should scale maf further and see if changes are positive.

So im away for some time as mine k04-025 just went poof. Cold side fins broken. Repair is expensive, new is expensive so i decided to go for GT2871R 064ar.  If anybody have some experience with this turbo on 1.8t please comment the experience. Is the tuning really that different compared to small turbos as people say ?

Aaand if stock one expensive for you then im pretty sure youre talkin about chinese crap

I mean expensive for K04-025 turbo as it is rare.

And the GT2871R is a real GT2871R?
Or more like chinese turbo X named GT2871R by eBay? ;)

You're going to spend more money on struggling with blown turbos and shit tunes due to crappy wastegates etc. than if you just

1) bought a decent turbo
2) scrapped the car and bought a new one.

Also, what caused your current turbo to fail?

OMFG. Now when i tell there is broken turbo everyone is talking shit about china turbos. When i asked for some advice regarding tune, very few found the time to write some tips. NO it is not a chinse turbo.
I have 2 choices. Either i buy OEM garret turbo or i will try " turboworks " poland turbo which has good feedback. When it fails, shit happens, will learn and buy oem one. Why i want to try poland turbo ? Out of curiousity. I know ebay turbos are crap, nothing new.
Nyet: 1. the turbo came with car, did not know the history of it. After taking turbo off, it seems it was already rebuilt. Seems that bearing failed. There was nothing  crazy on tune. I lowered boost and put OEM maf back until i got LTFT AND STFT in place. Req and actualt boost was 0.8 bar. Car drove without issue and logs seemed ok.  Im gueesing turbo was worn out. As my plan was at first to learn some basics with small turbo which car came with and later to get bigger one thats why i dont see any point buying same turbo for 600eur used 900 new when i could get bigger in same price. Sorry for being rude.

Okay, so it is GT2871R only in name, and in reality it has nothing to do with Garrett, just as I thought.

You can buy a BW Airwerks turbo for like 600 EUR.
Brand new and not china shit. They work pretty well. Yes it's not the latest highend stuff with ceramic ball bearings and what not like their EFR series, but they have modern wheels, spool well and the transient response is good. And it's not chinese bullshit that's going to explode.

Thank You for informative post. Will take it into consideration.

Decided to go for GT2860RS.

Hopefully by the end of the week will be new turbo installed with all the bits. Decided to go with EV14 550cc-s.
What maps should be theoretically configurated even before logging with this turbo ?

KRKTE, TVUB.

I'd set RAPP and drive DC at a flat 10%.

Fueling already done, i mean besides fueling.
Maybe someone can share KFLDRAPP aadress for  4B0906018CH 36010 file

Found RAPP on my file, can someone check if correct ?
MAP: 1EADF
X: 19BA2
Y: 1EAD6

I have KFLDRAPP @ 0x19BAA with X of 0x19B99 and Y of 0x19BA2

018CH-360101

Anyway, got good lesson today. For those who are seeking  questions regarding crossflashing softwares : Tried something new today on other car, crossflashed 4b0 ecu with 8E software and it seemed to work, then tried AK and ecu got bricked. Had to hack my FT232R cable for galleto.

So ecu is a different professor if I remember right, they changed stuff in 04ish on b6. That would have been the issue. I HAVE gotten a 032 file to flash on a 018 and it worked. Likewise I have flashed 018 onto a 032

This is driving me crazy. As i have to dial in injectors and maf, it seems impossible. I will try to dial injectors first with stock maf. Taking into consideration, that intake is custom, should i leave correction maps stock, until i get partial and idle dialed in with krkte and tvub ?

Other way around. You should know exactly what KRKTE/TVUB should be. Do that, then tweak MAF until your trims are better.

If you have no way of predicting what KRKTE/TVUB should be, you chose the wrong injectors ;)

Yes, you can do the stock MAF thing first, to get KRKTE/TVUB tuned right but you shouldn't have to.

These are EV14 550cc 0280158117 bosch.
I calculated theoretical krkte 0,059244 , tvub from datasheet 3 bar  : 2.7 , 1.54, 1.12, 073, 0523 .
For maf i used mafadjust and quick log with 2nd gear ps_W was higher than actual boost, also reg and actual afr was out of whack . Then i tried manual calculation of maf increasment and every time i got smaller results( i still dont understand how mafadjust calculates 60 to 70 with 36% increasment ) and made run. Ps_W was slightly under actual boost which per tuning wiki should be scaled correctly, but my req/actual afr went even more out of whack and afr was lean.

I am not sure, if my calculations are right but i took TVUB from here: http://nyet.org/cars/info/ev14-latency/550cc.png
To be sure i Checked Calibration summary. As 3.1BAR OFFCOMP is 1.1768 I calculated 3BAR OFFCOMP which is 1.1388
After calculating Tvub i get : 2.49, 1.63, 1.18, 0.898

Can You post your maf setting ? And log file with ps_w.  Please, thank you :)

I think there is no point as im pretty sure fueling was off. As for now i changed back stock maf to get fueling right, and then will change to new maf.

Got Idle and Partial LTFT sorted out. Now will start working on FKKVS.
Can someone help me out with NOLRA location in my file, please ?
Original bin attached

0X18F3E

Thank You !  :)

One more hint, your ECU have 24(36dec) on NORLA
Set it to 27(dec 39) to disable LTFT

Yes, figured it out already. Thanks again ! :)

My factory NOLRA is set to 36 (decimal) and to disable LTFT I am setting it to 7 (decimal) . It seems that work good too. It is possible ?  ???

As i have been reading from another threads, they might be different in different files.

So my LTFT-s are now 0 and after couple of configurations  to FKKVS my STFT are +-0.8-2.3%. Can i say now that im done with FKKVS ?
I guess the next step should be check if my WOT actual afr meets my req ? My KFKHFM is all 1 right now. What is the tuning philosophy behind the KFKHFM? Tweak only high load areas, where actual afr dont meet req ? Btw if  someone could share aadress for my file for NMAX. Thanks

actual should always meet req.

Thats what trims are doing.

Tune KFKHFM until STFTs are closer to zero everywhere.

How high fluctuation is considered OK ? If i understood it right if my trims are ok then my afr should be the same as my req.
Tho i am installing new rods new week. A little scared to do WOT runs with this turbo ( baseboost 1 bar ) , I am not sure if OEM rods can handle this torque.
And thanks for withstanding my stupid questions.

Correct feedforward calibration will ensure trims don't have to adjust fuel on the fly as much. You decide how much you trust the O2 PID.

Based on what? How much torque do you think you'll make? How much do you think your rods can handle?

This was assumption, as the difference with k04 is huge regarding pull even tho im driving with base boost.
From the info i have found the safe point is 300tq

A single K04 can't do much more than 200-250 anyway

But it can still cause damage
K04-015 with a shities tune I have ever seen
BFB engine

from detonation or too much tq?

Anyway, i have read on this forum, where some member, had gt2860rs on his 1.8t with stock rods , prj incl others told that he had probably already bent rods, so that made me cautious. If the difference is so big compared to k04, wont be impossible i think.

Especially too much torque at low engine speed damage stock rods. How spool your turbo ? :)

I would say no detonation looking at piston, but cant be sure beacuse scrap from piston skirt has damaged top of piston.
File was stock, only: underscaled MAF, LDRXN/LDRXNK in all area 255, KFMIRL same 255, and little work on KRKTE

And all that on 95 octane

When i made log it was -12 retard all time during WOT  :o

I will find my balls tomorrow and log WOT with 3rd. If im not mistaken,  3100rpm - 3300rpm =1bar

So here is my afr after today run. Ofc i run out of maf at the end, but before changing to bigger one i would like to dial the fuel with this maf. Is thiss considered rough ?  Is this fixable in HFM ?( dont mind after 5000k, thats where maf is 5V )

hard to tell w/o stfs lambda control values.

Sorry i forgot whole log.

wrong log file  ???

That log sure doesn't look good

This is right one. Sorry

How you control boost ? oem n75 or external controller ?

There is no good reason to use an external controller. I should hope he's not that silly.

What on earth are you doing?

fueling is the least of your worries.

Its oem n75.  Nyet, your critisism is hard to understand. If you see, whats clearly wrong i would be glad if You could find that time to point it out in words

It isn't obvious?

You schould pay someone to tune your car. Or learn a lot lot more.  You can't  run if you can't walk

0% WGDC and 17 psi of boost?  Sorry man but look at these things. Those are basic

You tune kfldimx/kfldrl ? How much boost presurre you have at 0%WGDC ? How strong your wastegate?

If the bigger problem for You is 1bar at 0% then I am very well aware of that and i have told it here multiple times. Turbo came with 14PSI actuator. Thats why i want to dial fuel first and thats why i wasnt eager to do WOT right now. I myself would like to change it to 0.5bar spring ( it should be sufficent ?) I set WG to flat 0%.
I am not an idiot, im not flooring it like You think i am probably. Anyway, back to main question, is it fixable in KFKHFM or FKKKVS.

Don't bother doing any more tuning until you get your boost set up properly.

One thing at at time.

Fix what is obviously broken FIRST. Do not try to fix multiple things at once. I don't know how many times i have to repeat this, lately its literally been just about every thread.

What could interfere with ignition cut ? Car has als and hardcut, it works, but after some driving and turning car on and off ignition cut does not work. Overnight it started working again. No codes.
I suspected faulty maf, but everything seems fine in logs and trims. Could it be temp dependant ?  ( oil , coolant ) ?

If youre used classic als script then it's only faulty clusch sensor could be the reason
But I've seen script with tmot checking once so..

Clutch sensor is working showing " on off " . By hardcut i meant rev limiter, its also gone.

Log tsrldyn
It's fixed with value of tsmx (2.6 iirc) while some fault active include e_lm (faulty maf)

Tested with engine temp of 88 celsius, everything was working. with 93 celsius it wasnt .
Will log tsrldyn tomorrow. I dont know if that is coincidence, but when the spark cut error comes, it seems LTFT also stop working.

Read S4 tuning wiki  ;D

Ok i think i figured it out. Lifted NMAXF and now it is working.
When i want my hardcut to be at 7000rpm I usually set nmax to 7100, but with these settings there is " empty hole " before cut comes in. Tried nmax 7050 and it is alot better. My question is, if it can me lowered even more, or i can deal with delay elsewhere? I am not sure if it is the right way, but it did  the effect.

Show your dwell table or post your mod file.

Set nmax to 7200, lift it well out the way.  Also set KFZW/min to -30 at 7000.

Meaning KFZW lowest load , first column 7000 to -30 ?
Or ZWMIN maps ? Sorry have not yet stumbled on them .

ZWMIN

Oh ok, im stupid. You meant KFZWMN( did not have this map ) . All loads 7k rpm - 30 then  ?
Ok tested -30 . Its alot better . Is this the case, more the better ? :D

adam-, it seems You know your stuff about pops and bangs. Could You please tell me why changing KFZWMN + other maps does not have effect ?  I need to change KFZWMS to get the effect.
 As i understand KFZWMS is for engine protection. I also had to change it for hardcut limiter to -30 for kfzwmn take effect.

So i decided to gather some logs with fixed DC-s. But boost seems weird. What could be the issue ?
1. Have tried 2 different n75 valves, result is same

What actuator?

Original garret which came with  turbo . Rated 1bar actual pressure tested 0.90-0.95
Actuator seems ok, tested multiple times.
I am still suspecting n75 as the oem started acting wierd, had aftermarket BS N75 on shelve but acted same.

Same thing with new OEM N75 valve

Ok there is something really strange happening.
Tried also direct connection from wastegate to turbo. Result is same. Tried to loosen wg, result is same, only change was boost started rising earlier?
Log comparisons

Sorry for quote. It was misclick Also to mention if i regulate boost with pids to 1.2-1.3 bar, then it is controllable. But i was not happy with that setup

Yup, people have said that

If you 100% sure that wg fully opened
And the boost pressure higher than wg spring
Then it's just a small wg hole. The Chinese crap usually comes with it

Had same tought, but its original Garret. Will detach wg from flap and test if there is full movement. If it is actuator,  are there suggestions , which producer to use ? Mamba, turbosmart etc?

Tested today. It seems as if actuator has too small movement and it opens wg flap ~75-80%.
Actuator code : A480009-6
Exhaust side : 449010-1

Anyway. Searching internet, it seems alot people have problems with GT28RS regarding overboost.

I've never got any problems with original garett
There is a 5bolt flange and if youre used custom dp with a flat surface in front of wastegate  it could ends up with the wg valve hitting the dp and not fully opens

Also those wg spring rated 12-14psi and boost curve follows it before 5k

Its custom DP, tested, and WG flap is moving freely to the max when actuator is removed. Made runs with 0 to 20. Are these normal, or incresment is too small ?
Will do rest runs tomorrow.

Anyway. Whatever problem is. Turbo is allover original. I made logs to the point where turbo started overboosting. From there i edited logs to 7000rpm

And this is first result with modified logs.

That actually looks pretty damn good

Thank You. That means alot. To get this feed forward system right, i guess it took atleast 10 tries + logs to make it like this . Have some work ahead to get it steady near 1450-1500mbar.  Btw, is my understanding of map limit correct : If i go over map limit, ecu wont  read boost above 2550mbar and as result pids wont control boost anymore. From my understanding, if something is mechanically broken / dont have boost gauge, it is possible to break something. BUT, if this is my car and with knowlage, i got over map limit and check it with boost gauge, have right springs, is it really that bad ?

I got still some problems regarding WOT and hardcut. I had my limiter set to 7000rpm. Sometimes, not always when doing wot runs, there was fuel cut after that goes to 7000rpm and again fuel cut.
Brought rpms down to 6000rpm ( hardcut ), and still same issue. Logged also stationary, there was fuel cut at 5700 rpm and 6000 rpm. And so called hardcut bangs sometimes happen, mostly not.
My guess was fuel pump or filter. But my car should have from factory S4 b5 fuel pump( somebody may have changed it ). So far i have not found any issue in software which could make this problem.
Added afr log stationary. 4bar fpr 550cc injectors. Injector duty cycle on wot runs ~ 80 - 85% . Out of ideas.

Did you adjust the axis? 

KFZWMN last value 6000
KFZWMS Last value 6720 and next to last 6000rpm -30

I have still problem which i have not been able to sort.
Problem : ALS and Hardcut stop working.
When als does not work, it makes only 0.5 bar and does not bang as much. When als is working, makes 1+ bar. When als does not work, also hardcut does not work ( no bangs ).
For exmaple I do wot, in 2nd gear, hardcut works, then i drive 2 minutes and next time hardcut does not work.  I have tried different things in software but nothing have helped so far.
Seems that everything works, in the morning and as if car gets hotter, it stops. ( not 100% sure ).
My last tought was that maybe my software has something to do with it as i changed to 4b0906018DC.

Did you write this yourself in ASM, or is it just in map changes?

If you just added it by script, remove it.

Hardcut was made by me only with map changes, and has been working on CH file also. ALS was added by tuner, who has tested this on many me7.5 cars. Right now I have little knowledge of ASM, as i am learning it now. I have suspected als, but i am not sure. My last resort would be to take fresh file and write everything without als to see if problem is still there.
As i have read als that is in this forum, is bad, I asked tuner to help. My guess is he knows what he is doing if he tunes cars all day and night and als works on other cars.

I'd remove it to rule it out as a source of the problem.

Okey, thank you. Will try it.

Tried DC software without ALS , same issue. Hardcut does not work most of the time. My only next guess would be to try CH software, but i am not sure if there is any point.
Have no other ideas anymore. ???

Got couple of questions:
1. Is engine oil temp somehow related to hardcut and als ? Sorry, not so good at reading FR YET.
2. I noticed, when hardcut works afr is nice rich ~~ 11.8- 12.00. When it does not work, afr goes lean ~AFR 16.00

Depends on ECU, method of hardcut and method of als. More often coolant temp than oiltemp, depending on ECU (afaik)

I have done both on DC and CH hard cut. Never had any issues. BDW. Those files are almoust indentical.
Yust raise NMAX, NMAXF, NMAXOG.
Also log tsdlyn see what is hapening

Thanks Will try again tomorrow. Tho i have tried different combinations of NMAX, NMAXF, NMAXOG none have helped so far. Right now .
Hardcut: 6000, Nmax 6300 nmaxf 6500 nmaxog 6300.

How did you make hardcut?

http://nefariousmotorsports.com/forum/index.php?topic=11664.0
I also suspected load, but i dont think that is problem ( my actual load is over 191 ).

Post a pic of maps how you mod them?

Forgot to add but KFZWMS 6000rpm -30 deg also

From here it looks okay, log dwell time. See what's happening

First try was working, second one was not.

Can you post both logs so i can look at it. Did you log throotle plate angle, rpm, injetion time?

Will make new logs  in the evening. ( did not have tpa and injection time )

Made multiple logs. One time it worked, others did not.

It seems when car has not reached 90 coolant temp everything is working.

As I can see it cuts ignition every time. Raise in KFSZT and KFTSRL rpm axis from 6000 to 6080(dont touch anything else)
and put NMAX NMAXOG to 6500 NMAXF to 6700

Made changes according to you post and made logs. Same thing. worked once .

You have full throotle open, you have fuel and ECU cuts ignition, RPM are not rising...

 When you say "it doesen't work"   what you mean by that? What doesen't work?

When it worked on CH file, it banged crazy like ak47 shooting. Right now, it only bounces and makes pops once. That made me thinking that it does not work.
Is my understaning wrong ? Should not be there always constant fuel ? As from logs i see fuel is also being cut off. That time when it worked, fuel was not cut off ( as i see from logs ).

video loading...
Edit: try my file, compare, adjust...
https://youtu.be/kxZf8cqZPXY

https://youtu.be/jOtU78nCklE

Thank You, really appriciate Your help. I checked ur file, and for the sake of testing, i changed rpm axis and kfzw/op like you did. I have long time suspected that i have wrong temin, as i still do not fully understand how to calculate it nor what value is  right. For the sake of test i changed temin also. And BOOM. Hardcut has never worked so well. I still will test either was it effect of temin or ur settings.
My temin was 0.25, changed it to 0.3. As per calculation, which is found on this forum, it should be 0.45 . Injectors EV14 550cc 4bar

I think i found the problem . Made alot logs until i found that B_brlmx was set. So i changed LDPBN and the problems are gone ( jerking at wot, hardcut working every time ) , Also tried als again , and now it makes over 1 bar. Need to test more to be sure.

So i have decided to pursue the path to do 5120 hack. I have tested IDA for a week, so far no progress  :D  I guess the hardest part is to do asm changes, when i have never touched IDApro. As we say, no harm asking, is there anybody here that is willing to help me out with asm changes ? Nevertheless, I will try to understand it myself.

I might have got it working on 4B0906018DC . From the logs boost actual is halved. Car is driving fine, no fueling issues what so ever. Will do some more testing and post results.

Anyway, as i did not found any working files of 5120 for my ecu, i made my own. Took time, but it is working.  All was done per instructions on S4wiki.
And thank you for help @rogerius for finding missing maps and confirming my asm locations were right.
I will add  stock file with 5120 applied and full kp + 5120 . Did not post logs as i was not happy with my boost. Need to figure that out that :)