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Part throttle/Full Throttle Misfires

Posted: Tue Nov 27, 2018 11:32 am
by Dublocivic
So I am going through the process of road tuning my K24a2/EG swap and have started to run into some misfiring/pops/cracks that started at part throttle and is now prevalent at full throttle. Nothing jumps out in the logs that would be indicative of a failing sensor (TPS/O2/MAP), I also have no codes associated to the misfiring. This problem is progressively getting worse and I am curious if anyone else has experienced an issue that is similar? Tuner is suggesting it may be the injectors (new 1500cc DWs), Ill check those along with back probing the TPS to make sure the voltage is right just to be sure. Would a failing TPS cause symptoms like this? Does anyone have any other ideas or things to check?

Thanks!

Re: Part throttle/Full Throttle Misfires

Posted: Tue Nov 27, 2018 11:45 am
by AREA876

Re: Part throttle/Full Throttle Misfires

Posted: Tue Nov 27, 2018 11:47 am
by AREA876
Need to see calibration and datalog of the problem

Re: Part throttle/Full Throttle Misfires

Posted: Mon Dec 03, 2018 5:24 pm
by Dublocivic
FWIW figured it out, the injectors were partially clogged. I cleaned them out and the issue is resolved. Morale of the story, use a 30 micron filter or finer. 40 is not fine enough if you have any trash in the tank.

Thanks!