What causes the code P0171 on a VW?
What causes the code P0171 on a VW? The P0171 trouble code indicates that your vehicle’s engine runs too lean on bank 1. This means the air-fuel mixture contains too much air and not enough fuel. This imbalance can occur for a several reasons, including faulty oxygen sensors, problems with mass airflow sensors, fuel system […]
What causes the code P0171 on a VW? Read Post »