Jan 10, 2025 · Learn what's causing your engine to run too lean and triggering the P0171 code, and how to fix it before it leads to costly repairs.

Aug 19, 2024 · The P0171 code means that more air than gasoline is detected in the exhaust gases exiting the combustion chamber. If the P0171 is set in along with the P0174 code, it is highly likely …

P0171 or P0174 readings indicate too lean of a system in one of your cylinder banks. Learn common causes and solutions to these trouble codes.

Diagnostic trouble code (DTC) P0171 stands for “System Too Lean” (Bank 1). The air-fuel mixture with too much air and little gasoline could trigger this trouble code. Lean Mixture = Too much air, not …

Details on causes of DTC P0171 and troubleshooting steps. Common fixes include cleaning the MAF sensor and repairing for vacuum leaks.

May 10, 2025 · Code P0171 is a generic OBD-II diagnostic trouble code indicating that Bank 1 of the engine is running too lean. In V-type or multi-bank engines, Bank 1 refers to the side containing …

A P0171 code, “System Too Lean (Bank 1),” means your engine is running with too much air or too little fuel, triggering the check engine light and risking damage if ignored. This guide covers the P0171 …