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Title: Strange intervention at WOT Post by: yxx499 on December 19, 2016, 07:58:26 PM Hi mates,
I have some issues at my Seat 1.8T 20v BT , Deka 630cc, running WG pressure with internal WG, and that gives me headache. At WOT i have a hard and strange intervention and i don.t know from where it comes. When driving and pressing WOT, for one second, at arround 4000-4500rpm the engine jerks brutal... for one or two times. My opinions: 1. That is not really a TQ Intervention because i run KFLDRAPP enabled (cwmdapp8). 2. Second time i thinked is the ign.advance, but i have signifiant lowered it to maximum 12-13deg and same trouble, also i see no retarding on logs. 3. Replaced spark plugs, coils, nothing changed. 4. For sure is my fault ...something wrong in software, i suspect KFDMARO maps(i maked them 99%) or .. dont know. Thinked at IRL/IOP but one time when i get them wrong, ECU trowed me TQ Monitoring level2, but in this case i don.t have DTC's. AFR is ok(Except the moment when car jerks), ign timing is ok .... but dont know what to do. I atached the log (jerk between 3800-4200rpm area). Someone can give me help or saying me if i need to log more variables...maybe will find the solution. Title: Re: Strange intervention at WOT Post by: nyet on December 19, 2016, 08:07:46 PM Please do not post Excel fies.
They cannot be parsed by ECUxPlot and are non portable. Title: Re: Strange intervention at WOT Post by: yxx499 on December 19, 2016, 08:09:47 PM Sorry, i have re-uploaded original log.
The "jerk" is after 3900rpm -4000-4100rpm you can see in log. Title: Re: Strange intervention at WOT Post by: nyet on December 19, 2016, 11:50:28 PM Log misfires?
Title: Re: Strange intervention at WOT Post by: yxx499 on December 20, 2016, 01:52:36 AM I maked 30 minutes ago 5-6 logs , all with missfires logging, 0 overall.... :-\
This car maked me crazy....i dont find the solution... :( Title: Re: Strange intervention at WOT Post by: nyet on December 20, 2016, 02:22:33 AM I see nothing else going wrong.
O2 voltages maybe? Title: Re: Strange intervention at WOT Post by: adam- on December 20, 2016, 05:38:06 AM Deviation from actual/current at 4680 - 5440. Goes lean at 5200. No mshfm.
Does it do it not MAFless? Title: Re: Strange intervention at WOT Post by: nyet on December 20, 2016, 11:41:49 AM btw just because you don't log misfires doensn't mean there aren't any..
Title: Re: Strange intervention at WOT Post by: nyet on December 20, 2016, 11:44:47 AM going to guess misfires from ignition or fuel problems.
Definitely not tuning related. Title: Re: Strange intervention at WOT Post by: yxx499 on December 20, 2016, 01:50:36 PM Yes , is a mafless setup.
Le : I was found ECU Relay J249 was almost dead...a part of jerking has gone.. but not complete. After that , i will try to correct FKKVS and upgrade Coils to TFSI ones. Title: Re: Strange intervention at WOT Post by: nyet on December 20, 2016, 02:03:18 PM What is your reasoning for going mafless
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