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I got a tune up six months ago (change of oil, new filters, spark plugs). The check engine light comes on sporadically with a secondary air system error (O2 censor) but I had the replaced a while ago. The mechanic said everything checked out fine and that perhaps the CEL is a result of a CPU/electrical problem. So, I'm not sure if he's right or if he simply did poor work.
I'd be happy to get my hands on a service manual so I could inspect the fuel lines, sensors, plugs, and filter myself.
Any other suggestions besides the standard tune up?
thanks,
Colby
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