Can a oxygen sensor cause 0171 code on 2002 Chevy Prizm?

Yes, a faulty oxygen sensor can cause a P0171 code in a 2002 Chevy Prizm. This code indicates a lean air-fuel mixture, which can occur if the oxygen sensor is not accurately reading the exhaust gases. However, it's important to consider other factors, such as intake leaks or fuel delivery issues, as they can also trigger the same code. Diagnosing the problem thoroughly is essential to determine the exact cause.