how to fix code P0302 Cylinder 2 misfire?

Question

I already changed cylinder 2 plug, wire, coil pack and fuel injector. still check engine sign is on. thanks in advance

Answer 1

HI there

I would next check for vacuum leaks around cylinder #2. Also, if the car uses any coolant it could be an issue with the head gasket allowing coolant to leak into the cylinder. This results in a misfire when the car is first started. If it's leaking real bad then it could cause a misfire after it's been running as well.