A P0171 code appears in the engine control unit when the oxygen sensor on bank 1 recognizes too lean of an air-fuel mixture for the sensor to correct it. Several different things could cause this ...

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 ...