P0305 Jeep -

Question

computer says 5 cylinder misfire and # 5 cylinder
I changed spark plug & ignition coil stiill the same.

Answer 1

Hi there,

The next steps would be to check for an intake manifold gasket leak, engine compression on cylinder 5 and try swapping the fuel injector with the one next to it. If the misfire moves to a different cylinder when you swap the injector you know the injector is causing the problem.