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Title: Misfire behavior but no misfire Post by: armageddon on February 25, 2017, 02:48:37 PM Hope someone can help.
On low load every thing is fine, but if i give it some load the engine start to shake just like misfiring, but no misfires are detected. Log attached, if other variable are needed let me know. thanks Title: Re: Misfire behavior but no misfire Post by: KasperH on February 25, 2017, 05:53:06 PM you got knock that sticks out with the glance i had at it, but not enough to warrent engine shaking i think.(5 degree peak)
and it also looks like youre having problems following desired AFR (probable cause of knock?) :) Title: Re: Misfire behavior but no misfire Post by: KasperH on February 25, 2017, 06:03:28 PM this is what im talking about with the AFR :)
Title: Re: Misfire behavior but no misfire Post by: prj on February 26, 2017, 03:53:46 AM This is misfire. The lean spikes on WB are misfire events.
Title: Re: Misfire behavior but no misfire Post by: armageddon on February 26, 2017, 04:52:25 AM Maybe a torn wastegate line?
I disabled ARMD and theres no shaking, but boost is out of control making my clutch slip. will have to do a boost leak test, but it will have to wait a bit as my kit is with a friend... Title: Re: Misfire behavior but no misfire Post by: armageddon on April 01, 2017, 08:22:05 AM To give a conclusion to this...
It was infact misfires,but for some odd reason ecu did not assume them, in past ocasions they appear in logs and vcds, but not this time. I have some spare coils that I replace one at a time to find that was cylinder 1 coil that was bad. clutch was sliping because it's already a little weak and as boost was increasing fast after misfire events, it sliped. all good now. thanks Title: Re: Misfire behavior but no misfire Post by: prj on April 02, 2017, 03:46:43 AM I told you ;)
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