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Author Topic: going rich at idle after load  (Read 14992 times)
fknbrkn
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« on: March 14, 2014, 06:33:15 AM »

hi

i have a problem - after accelerating at WOT (or close to wot) engine cant propery handle idle speed.
for example - pulling hard to 4k and depress gas pedal, shifting to N (manual gerabox) or hold clutch and then rpms goes down but   dont hold at idle and drops to 600 or more and sometimes the engine may stall
and i see at this moment 0.75 lambda (spec and actual) and accordingly long injection time - i think this is the reason but i dont know why ECU want so rich at idle

all ok with unplugged maf or on low loads

1.8t AUM (AUQ, AWP etc)
TT maf housing with stock unit (pretty new) scaled with mazer.gti mafadjust tool
« Last Edit: March 14, 2014, 06:36:34 AM by fukenbroken » Logged
userpike
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« Reply #1 on: March 21, 2014, 08:24:06 PM »

hi

i have a problem - after accelerating at WOT (or close to wot) engine cant propery handle idle speed.
for example - pulling hard to 4k and depress gas pedal, shifting to N (manual gerabox) or hold clutch and then rpms goes down but   dont hold at idle and drops to 600 or more and sometimes the engine may stall
and i see at this moment 0.75 lambda (spec and actual) and accordingly long injection time - i think this is the reason but i dont know why ECU want so rich at idle

all ok with unplugged maf or on low loads

1.8t AUM (AUQ, AWP etc)
TT maf housing with stock unit (pretty new) scaled with mazer.gti mafadjust tool

I think it got so rich it stalled..

Is it safe to assume you are running larger injectors?

KFVAKL

KFAKAV

may need some looking into? I'm guessing here.

There isn't much to that log.

Why the larger MAF housing?






« Last Edit: March 21, 2014, 10:14:09 PM by userpike » Logged
fknbrkn
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mk4 1.8T AUM


« Reply #2 on: March 22, 2014, 12:28:32 PM »

yes im using larger (TT 225) injectors with 4 bar FPR. changed krkte, tvub and kflf.
larger maf housing because hybrid turbo makes 200+ g/s
i can only use vag-com to log .. others are not worked (communication errors) dont know why. waiting for MPPS cable i think it helps
didnt changed KFVAKL and KFAKAV. gonna define them and looking tonight thanks
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ddillenger
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« Reply #3 on: March 22, 2014, 12:57:29 PM »

Set the CONNECTION in the ME7Logger .ecu file to 0x00.

Vagcom logs are not sufficient. If you have to, run a dedicated K-line, or pull the cluster for logging.
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userpike
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« Reply #4 on: March 22, 2014, 03:16:32 PM »

Set the CONNECTION in the ME7Logger .ecu file to 0x00.


What does this do exactly?
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ddillenger
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« Reply #5 on: March 22, 2014, 04:04:41 PM »

It does WERK.

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fknbrkn
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mk4 1.8T AUM


« Reply #6 on: March 23, 2014, 03:04:25 PM »

It does WERK.



not for me

SLOW-0xFE

and connection speed 125000

are solved problem with me7logger Smiley
« Last Edit: March 23, 2014, 03:12:38 PM by fukenbroken » Logged
fknbrkn
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« Reply #7 on: March 24, 2014, 03:45:39 PM »

here is the logs
problem on second 50 and 84

« Last Edit: March 24, 2014, 03:48:45 PM by fukenbroken » Logged
userpike
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« Reply #8 on: March 26, 2014, 11:33:32 AM »

0x00
It does WERK.


not for me

SLOW-0xFE

but what exactly does changing this do? I get the SLOW and FAST is slow and fast init but the numbers... I get it's hex but that's it.
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fknbrkn
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« Reply #9 on: March 26, 2014, 02:54:41 PM »

have no idea
experimented with 0x00 and saw in me7logger console something about 0xFE .. tried this and it starts logging but crashing after few seconds. speed 125000 and all ok
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fknbrkn
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« Reply #10 on: March 31, 2014, 11:52:36 AM »

oh im so stupid.. me7info can show connection settings Smiley

anyway fueling problem is still there..
« Last Edit: March 31, 2014, 12:06:40 PM by fukenbroken » Logged
userpike
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« Reply #11 on: March 31, 2014, 03:14:22 PM »


anyway fueling problem is still there..


Whats your EVAP system looking like?
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fknbrkn
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« Reply #12 on: March 31, 2014, 03:20:46 PM »

its stock
nothing has removed
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userpike
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« Reply #13 on: March 31, 2014, 04:01:14 PM »



Since and only since you switched MAF and injectors from a TT225 to the AWP/AUQ, copy all the fueling maps over and stock MAF maps and correction maps over. Don't forget the wall film maps also. Because these are your new *stock* settings. So start from there. Put MLHFM to stock for the 225TT also.

See if the rich condition happens again. or put your hardware back to stock with stock ECU settings and see if the rich condition goes away.
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fknbrkn
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« Reply #14 on: March 31, 2014, 04:14:29 PM »

okay, waiting for good weather..

what you mean by "wall film maps" .. my english is not very well sorry

ive tried stock 225TT MLHFM right after swapping housing but it reads much lower at all range
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