My CEL has been wonky since last year. Recently it went on, I gassed up, and it went out later that day. Great. But it's on again (usually happens in cooler temps) and even after checking the cap, it's still on. My ScanGauge II gives me random codes. I clear them, there's suddenly another in there. Clear it. Another. Is it my ScanGauge or a faulty CEL? I don't know. I'm not fond of visiting the dealership for a silly faulty light though. Any suggestions?
Deets: 2008 North Ed., 2.4L, FDII, 105k kms