1998 S10 4.3L Engine P0302 Misfire at Idle - Fix and Diagnosis Help

Model: 1998 s10 Fault Code: P0302 Posted: 2010-12-23 13:54

I recently replaced the intake gasket on my 1998 S10 4.3L engine and now experience a misfire at idle, indicated by the P0302 diagnostic code. The issue disappears when I rev the engine to around 2500 RPM. This behavior suggests a potential fuel delivery or ignition problem in cylinder #2. Since this is a critical fault affecting engine performance and emissions, I'm seeking expert advice on possible causes and solutions before my truck needs further repairs next week. Any insights into troubleshooting steps for P0302 specifically on the 1998 S10 would be greatly appreciated.