Having problems with your 2004 Pontiac Grand Am ?
1 have 04 grand am the service engine soon light stays on computer says misfire on #2 cylinder changed spark plug an wire reset the computer it does good for a dau or 2 an then it stars the same thing again .what could the problem be .no miss in the engine at all
The ecm will register a cyl, miss that you cannot detect, nest step is to check the injector
Repair Help & Product Troubleshooting for 2004 Pontiac Grand Am
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