I have a 2000 Toyota Corolla VE, 4 cylinder that was giving me P0302, P0301 & P0300. I have changed all four spark plugs, gapped at .050. Replaced all four coil packs and intake manifold gasket. After the repairs I still get P0302 only. I checked engine compression and it is good. Fuel pressure is about 45psi.
What's odd is that while viewing the data stream I can see cylinder #2 misfire at an idle or while driving in stop and go traffic. Once I get up to higher rims or drive on freeway I no longer see misfires on cylinder #2 or check engine light. I also noticed my LTFT is at 15% while at an idle or higher rpms. Also swapped injectors #1&2 w/#3&4 and no change in misfires. Also sometimes after driving car and turning engine off it is nearly impossible to restart engine. Usually have to wait 10-15 minutes before it will restart. Any help or suggestions would be appreciated.
What's odd is that while viewing the data stream I can see cylinder #2 misfire at an idle or while driving in stop and go traffic. Once I get up to higher rims or drive on freeway I no longer see misfires on cylinder #2 or check engine light. I also noticed my LTFT is at 15% while at an idle or higher rpms. Also swapped injectors #1&2 w/#3&4 and no change in misfires. Also sometimes after driving car and turning engine off it is nearly impossible to restart engine. Usually have to wait 10-15 minutes before it will restart. Any help or suggestions would be appreciated.
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