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If you were to have the codes checked and they gave you a specific cyl that is misfiring , just switch the coil with another cyl .one of 2 things should happen , if the misfire moves to the new cyl location the coil has a problem. If no change it could be the spark plug, injector, or engine mechanical problem.
If you now switch plugs with a different cyl if the misfire moves there , plug problem.
If still no change, we're down to valve/spring, or wiring to the coil /injector or both. Last but not least is the PCM.
If you now switch plugs with a different cyl if the misfire moves there , plug problem.
If still no change, we're down to valve/spring, or wiring to the coil /injector or both. Last but not least is the PCM.
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