When your dashboard check engine light (CEL) or other warning lights illuminate, your vehicle’s engine control module (ECM) senses a problem. The ECM then generates and stores a diagnostic trouble ...

Hello. I've had an ongoing problem with my 2008 Corvette for over a year. I have reoccurring fault codes of P0171 and P0174, fuel trim lean on bank one and two. I have had the car to four shops and ...