P0301 code, cylinder one. I replaced ignition coils, spark plugs, injectors, air flow, cam, crank and oxygen sensors. I did a compression test the reading is good, check cylinder 1, both ignition coils and injector harness getting voltage, ground and continuity between the Jack's to the ECU. No intake vacuum leaks. I also tried another ECU as well. I completely removed the catalytic converter years ago. A while back I had an issue with the fuel pump so I replaced it together with fuel filter some months back. After all this the car still misfiring and showing a code p0301. Any other advise I will be thankful.
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Friday, June 17th, 2022 AT 10:53 AM