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Title: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: schattenparker on June 13, 2013, 01:31:41 PM Hello guys,
i have the following Problem: Golf 4 1.8t with gtx28. So the car runs great besides idle. Lambda in idle ist 1 but the car oscillate arround 600 u/min and 1000 u/min. When i changed to original MAF and injectors the car get a perfekt idle. I changed some axis in FKKVS and in the MAF compensatze Map (replaced from the originale S3). Is there any more Map that i have to Change? best regards Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: vdubnation on June 13, 2013, 01:40:56 PM dekas are horrible at idle i had to raise my idle to stop some miss fire
increase these got these from tonys stage 3 helped me out alot NLLM - Raised idle speed to help with misfires KFMRESK - Raised base idle torque with clutch depressed to help with misfires KFMRES - Raised base idle torque without clutch depressed to help with misfires also how are ltft's idle trims ? post your tvub,kvb Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: schattenparker on June 14, 2013, 03:02:38 AM KVB is only for calculating consumption on instrument i think.
TVUB: 8 10 12 14 16 1,8802 1,2295 0,8748 0,6454 0,4747 trims are arround: STFT: +1% and LTFT -3 % I haven`t any missfire. The only problem i have is the oscillate at idle. Are there any more maps? I tuned a s3 with DEKAs for a while and there are no problems at idle. Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: vdubnation on June 14, 2013, 06:35:48 AM heres my tvub not sure if it will make a diff.
Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: schattenparker on June 14, 2013, 10:49:14 AM Whats your krkte and fkkvs? 3 bar fuel pressure regulator?
If i have enough time tomorrow, i will test again. Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: schattenparker on June 15, 2013, 09:08:45 AM Problem solved. Little tuning with fkkvs ans car runs perfekt.
Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: catbed on June 15, 2013, 01:46:03 PM Problem solved. Little tuning with fkkvs ans car runs perfekt. What did you adjust in FKKVS? Add fuel at low PW? Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: schattenparker on June 15, 2013, 11:33:42 PM i decrease fkkvs and increase krkte.
So i have values arround 0,893xx in fkkvs. Title: Re: Poor idle: oscillate *Siemens Deka and S3 MAF** Post by: vwaudiguy on July 28, 2013, 11:17:34 PM How far apart were these oscillations?
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