Quote:
Originally Posted by MSC43
That is the thing......I noticed no difference when driving or felt anything strange....just the "service engine light" came on.
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Random misfires can be a lot of things. The MAF, O2 sensors, the spark plugs, ignition coils, and bad gas.
I'd start by adding a fuel cleaner with your next tank of gas. Sometimes that helps.
Also depending on your miles, maybe it's time for a tune-up. I'd replace all the plugs and see what happens. And it wouldn't hurt to replace the ignition coil in the No. 3 cylinder.