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P0171 and P0130 Trouble Codes - How to Fix in 2002 Chevy Cavalier

Model: 2002 Chevy Cavalier Fault Code: P0130 Posted: 2009-01-02 19:07

My 2002 Chevrolet Cavalier is displaying trouble codes P0171 (System Too Lean) and P0130 (O2 Sensor Circuit Malfunction - Bank 1 Sensor 1). I'm unable to locate the MAF sensor in my vehicle, and it does not appear in the Haynes manual. Can anyone confirm where the MAF sensor is located on a 2002 Chevy Cavalier or provide guidance on how to resolve these diagnostic codes?

Related fault codes

P0130P0171

Comments (3)

Anonymous 2009-01-02 20:08

When addressing P0171 and P0130, prioritize the lower-numbered code—P0130—since it provides more specific fault information. This helps narrow down potential causes such as a faulty upstream oxygen sensor or wiring issues.

Anonymous 2009-01-03 08:47

P0130 indicates an O2 sensor circuit malfunction in Bank 1, Sensor 1 (upstream). While a failed oxygen sensor is a common cause, it's essential to first verify the wiring and electrical connections for proper voltage and ground before replacing any components. Always use high-quality replacement parts.

Anonymous 2009-01-03 13:36

Thanks for the helpful advice! I recently replaced my fuel filter, and the vehicle has since run more smoothly with both codes clearing from the check engine light.