A6turbofrance
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« on: August 08, 2012, 09:28:45 AM »
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Hi
Here the story
i have an A6 2.7T from france
original ecu is 4B0907551F
i have flash it with an M-FILE with tweaked MLHFM & MLOFS for bosch maf
i get started with the schell Stg 2++ file for 93 octane
i have tweak KRKTE for my 440cc green giant injectors.
for e85 i have start by tweek 40% more fuel.
Since my injectors is 48% bigger than the oem one, i have just reduce the standard stg2++ by 8% for have the 40% more of fuel.
I have tweak the KFZW/KFZW2 for little more timing at high rev.
I have add the NLS and antilag too...
I have tweak a little the LDRXN_1_A & LDRXNZK for keep a little longer the pressure to 4000 at 5800 rpm.
So for the problem
The car run just fine, but at low load, when i WOT at lov rev for an acceleration , sometime the pressure don't go up 6 psi like a limp mode. if i throttle slowly the car just run fine and boost at my required pressure.
I have try with the standard stage 2++ KFMIRL & LDRXN and i have the same pressure, the problem seem to like at 2000 to 2800 rpm that the rev i got the most time the problem.
Is there an issue to disabled the limp mode ?
i thinks it's a boost mapping problem, i have just check with my STANDARD ECU FILE from the D-BOX and i never got this problem. The car is pretty fast when the problem don't come but i don't find any issue.
I join in file the original file (origine.bin) and my file for help.
please help me i try to find on nefmoto but i have try all i can do for my knowledge, if pro of me7 can take a look i will be so happy my car run hard again.
thanks
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A6turbofrance
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« Reply #1 on: August 08, 2012, 09:31:37 AM »
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i just add i can't monitoring when the engine is running to connection from kline, only with VCDS lite.
i have check for leak and find nothing
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Michel94
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« Reply #2 on: August 08, 2012, 09:48:16 AM »
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xdf or kp file? how do yo tweek 40% more fuel? maybe too rich between 2000/3000tr
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prj
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« Reply #3 on: August 08, 2012, 04:21:29 PM »
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You need wideband to see what is going on.
440cc green giants have different latency characteristics, so it is likely you run too rich at idle and then the ECU can't compensate quick enough on part throttle... Or your long term trims are out of whack.
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AndiS4
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« Reply #4 on: August 09, 2012, 03:18:06 AM »
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Doesnt this problem exist with your normal stage 2++ tune? Are there any fault codes? In limp modes there should be. 40% sounds much. If there arent any other faultcodes, follow Prj´s advice and check afr at first. did you write the e85 enrichment to your stock file, too? there you can see if its a fueling problem or not, if you have no wideband O2 at hand that fast. Log some drive and post them. ME7 logger is fine. Just connect with double slowinit in ignition on, engine not running. then log! Before every log clear fault codes.  |
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A6turbofrance
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« Reply #5 on: August 09, 2012, 07:27:54 AM »
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hi andi
i can't log my car, no connection from kline when i start the engine.
i thinks a module like abs or radio is guilty but i have not found yet the problem.
stock file is for euro SP95 like your 87 Octane on usa with stock S4 injectors.
tuned file is for e85 with 440cc @ 3 bar green giant injectors.
the problem is the car is pulling very hard when i have not the problem.
i have try to raise ELDROP without succes.
cause i too rich fuelling can cause this kind of limp mode with boost only to 5 psi ?
what are the tables for the maf reading error and for this limp mode ?
thanks
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nyet
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« Reply #6 on: August 09, 2012, 08:08:30 AM »
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k line problems shouldn't prevent you from pulling codes
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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nyet
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« Reply #7 on: August 09, 2012, 08:10:29 AM »
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The car run just fine, but at low load, when i WOT at lov rev for an acceleration , sometime the pressure don't go up 6 psi like a limp mode. if i throttle slowly the car just run fine and boost at my required pressure.
I have try with the standard stage 2++ KFMIRL & LDRXN and i have the same pressure, the problem seem to like at 2000 to 2800 rpm that the rev i got the most time the problem.
Is there an issue to disabled the limp mode
Sounds like throttle cut or positive deviation. Pointless to do ANY TUNING until you can log. Really. Drop EVERYTHING and make that a priority, or take the car to a professional. |
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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prj
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« Reply #8 on: August 09, 2012, 08:54:41 AM »
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Open your ME7Logger ecu config file. Set Connect to 0x00: Now, go into your car, put ignition ON. DO NOT START THE CAR. Connect with ME7Logger, wait until it starts logging. Once ME7Logger starts logging, you can start the car. DO NOT TURN THE IGNITION OFF BEFORE STARTING THE CAR. |
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A6turbofrance
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« Reply #9 on: August 09, 2012, 09:27:40 AM »
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i just try this weekend your method for log.
I try a new file tonight with TLDOBN maxed and TABLDOBN set to 0 for see if this protection can go out.
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A6turbofrance
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« Reply #10 on: August 09, 2012, 09:30:05 AM »
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i know it's better to use the log for tuning the file.
I have do only change for use with E85 fuel adding more than 40% of fuelling without increased too much the timing.
i just try tonight a file with 35% more fueling than standard, and some protection disabled
i will try the prj method for loging.
i have already try it slow init i can connect when ignition is on , but the connection loose when the engine is running
that look very strange.
i have try unfit the radio like i have read on internet for kline interference but no issue with this.
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nyet
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« Reply #11 on: August 09, 2012, 09:50:50 AM »
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i just try this weekend your method for log.
I try a new file tonight with TLDOBN maxed and TABLDOBN set to 0 for see if this protection can go out.
this is not the way to fix things. NEVER guess, always log. I doubt its OBN related anyway. Are you throwing codes or not? |
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« Last Edit: August 09, 2012, 09:53:46 AM by nyet »
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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A6turbofrance
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« Reply #12 on: August 09, 2012, 11:19:27 AM »
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18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17881 - Shareware Version. To Decode all DTCs
P1473 - 35-00 - Please Register/Activate
16684 - Shareware Version. To Decode all DTCs
P0300 - 35-00 - Please Register/Activate
16689 - Cylinder 5: Misfire Detected
P0305 - 35-00 - -
17528 - Shareware Version. To Decode all DTCs
P1120 - 35-00 - Please Register/Activate
16538 - Shareware Version. To Decode all DTCs
P0154 - 35-00 - Please Register/Activate
16690 - Cylinder 6: Misfire Detected
P0306 - 35-00 - -
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A6turbofrance
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« Reply #13 on: August 09, 2012, 11:23:13 AM »
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what variable u need if i can log my car
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nyet
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« Reply #14 on: August 09, 2012, 11:29:36 AM »
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Do not do any more tuning until
1) you have a way to pull codes completely
2) you have a complete logging setup (not just VCDS)
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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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