Gmc envoy

[Dwhid64]

Check engine light on its reading misfire on cylinder2 i tried everything pretty much,new plugs new coil pack new injectors, dont know wat else it could be please help thx.

[carriedi]

if the p0302 is the only code and you have done the plug, coil and injector you should look and compare to a known good cylinder, what the electrical wave forms look like. If the injector looks like another injector and the coil looks like another coil then you may have a mechanical problem with that cylinder. you may want to do a cylinder leakdown test and see if your valves are fully closing.