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Rick
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« Reply #15 on: December 04, 2010, 11:47:37 AM »
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Ok, found the map.
It is 4x1, and as stock is set to 1 for every value.
Rick.
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Rick
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« Reply #16 on: December 04, 2010, 12:14:10 PM »
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So i now only have one more puzzle to solve, and that is what the EGT sensors are used for.
I translated this little snippet, but it doesn't make a lot of sense to me at this stage. It could be suggesting that if the actual measured temp is above calculated, then measured temp is used:
* If the actually measured temperature, the temperature has reached critical components must be read from the modeled temperature and registered in the corresponding threshold. Possibly. Error in the exhaust gas temperature model are thus in the emerging TABGBTS, TKATBTS, TIKATBTS and TWISTBTS again
Rick
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Rick
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« Reply #17 on: December 06, 2010, 04:06:28 PM »
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Bit of an update.
Yesterday i found my long term fuel trims were around -22%!
This would explain why when I went WOT and open loop the AFR was going rich. I've since rescalled KRKTE and LTFT and STFT are less than 1%. When I went WOT lambda stayed around 1, which is what i would expect. The car felt noticeably slower now it's staying at lambda 1.
I then rescaled the axis in LAMFA so that i could request different lambda at different requested torque. I requested lambda 0.85 above a requested torque of 70. This has richened the mixture, but not to 0.85 - it's more like 0.91. I could just tune LAMFA until I hit lambda 0.85 on WOT, but I'm going to edit KFLF to see if i can get requested lambda to equal actual lambda.
ElRay mentioned that calculated EGT can be read in block 34. I don't think this is correct, as that is catalyst temp which will be lower than the EGT for component protection, can anyone confirm?
Rick
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fknbrkn
Hero Member
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mk4 1.8T AUM
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« Reply #18 on: October 17, 2013, 02:35:44 PM »
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Hello
maybe im asking very stupid question
but i have a problem - requested lamda goes down from 1 to 0.8@5000 but actual goes the same only before rev hits 3000, after that it raised to 1..
im using 380cc (from BAM engine) with 3 bar fpr and IDC goes over 100%
today im changing fpr to 4 bar without any changing in the file. i have no time to make normal logs. but saw that IPW 24ms@4500 so it is 90% IDC
but lamda still around 0.95 .. 1.0 at 3000+ WOT
any reasons why it can be happened?
new fuel pump
new filter
new injectors
old o2 sensor
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Rick
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« Reply #19 on: October 17, 2013, 03:01:35 PM »
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It really would help to have logs
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fknbrkn
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mk4 1.8T AUM
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« Reply #20 on: October 17, 2013, 06:27:54 PM »
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only vag-com log for now..
well i see that after 4760 rpm IDC goes over 100% again
but why it so lean before..
maybe im not very accurately rescaled MAF but i think it shouldnt affect in the actual lambda measurement. is it?
btw
stft 0.8%
ltft (with 4bar fpr) -3.2%
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« Last Edit: October 17, 2013, 06:56:10 PM by fukenbroken »
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Rick
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« Reply #21 on: October 18, 2013, 03:41:34 AM »
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What is STFT when on full throttle and it is lean? Have you tried with lower boost?
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fknbrkn
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mk4 1.8T AUM
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« Reply #22 on: October 24, 2013, 11:52:15 AM »
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found a cracked breather hose .. (a ~year ago ive changed all pcv except this one  ) replaced it pressure test - no leaks change krkte to match 404cc`s (380@4bar) and lowering load a bit still have a problem take a laptop today and make a short pulls at WOT second gear after flashing can take normally WOT logs at 3 gear tonight if it needed |
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« Last Edit: October 24, 2013, 01:17:05 PM by fukenbroken »
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fknbrkn
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mk4 1.8T AUM
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« Reply #23 on: October 24, 2013, 12:03:51 PM »
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sorry
bad file
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fknbrkn
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mk4 1.8T AUM
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« Reply #24 on: October 28, 2013, 04:03:55 PM »
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replacing o2 sensor make no sense
bying walbro 255lph inline (not fit yet)
maybe it is wrong way? stock fuel pump cant rich @18psi ?
any help needed..
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Rick
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« Reply #25 on: October 28, 2013, 04:24:51 PM »
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Measure fuel pressure under load.
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fknbrkn
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mk4 1.8T AUM
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« Reply #26 on: November 01, 2013, 02:33:53 PM »
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thanks for your help Rick
just installed walbro inline today and car pulls amazingly now
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