Q: What could cause the code P0171 on 2002 Toyota Corolla?A: In the 2002 Corolla, the code P0171 is often caused by a bad or dirty mass airflow sensor or vacuum leaks. Your mechanic can check for vacuum leaks and test the mass airflow sensor with a scan tool. If the mass airflow...
So this engine code article applies to Toyota, Chevrolet, Ford, Nissan, Honda, GMC, Dodge, etc.Basically this means that an oxygen sensor in bank 1 has detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has ...
> Gen 2 (2004-2009) Toyota Prius Forums > Gen 2 Prius Main Forum > P0171 codeDiscussion in 'Gen 2 Prius Main Forum' started by PapaWill, Oct 20, 2023. Tags: p0171 code PapaWill Member Joined: Jan 11, 2019 137 25 0 Location: Maui, Hawaii Vehicle: 2010 Prius Model: ...