my car is displaying a lean cel, any one know why it might do that? haven't had any problems , any suggestions.
Po176? System bank lean? My CAI used to get that CEL whenever it was cold/rainy. I've got your exhaust up in town now.
95% of the time it means you need a new front A/F sensor. The other 5% is usually: 1. MAF is starting to go bad. 2. Some combination of aftermarket parts causing a lean condition. 3. A leak in the intake/induction system.