How to Fix OBD Code P0171: Fuel Trim System Too Lean (Bank 1)
Follow code P0171 indicates that the fuel trim system is running too lean on Bank 1. This means the air-fuel mixture in the engine has too much air and not enough fuel, which can lead to performance issues, increased emissions, and potential damage to the engine if left unresolved. p0171 skoda, p0171 vw, p0171 audi. … Read more