Malfunction check engine light
Asked by BobHolliday Nov 11, 2011 at 07:45 AM about the Volkswagen Jetta
Question type: Maintenance & Repair
I Changed o2 sensors. plugs and wires and air filter: what next to try?
1 Answer
jmcalafactor answered 13 years ago
Try the gas cap. I know that this sounds ridiculous but, a vented cap that is not venting properly or is venting too much ( like removing the cap or installing the wrong cap ) will cause your "Check Engine" light to come on.
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