DTC P1421 Audi
Secondary Air Injector Valve Circuit Short to Ground
Secondary Air Injector Valve Circuit Short to Ground
Secondary Air Injector Valve Circuit Electrical Malfunction
Tank Ventilation Valve Circuit Short to B+:
Low Pressure EGR Sensor Position circuit high
Tank Ventilation Valve Circuit Malfunction Conditions
ignition timing monitor
Sensor for internal pressure of cylinder 4 Implausible signal
Sensor for internal pressure of cylinder 4 Short circuit to ground
Sensor for internal pressure of cylinder 4 Electrical malfunction
Sensor for internal pressure of cylinder 3 Implausible signal
Sensor for internal pressure of cylinder 3 Short circuit to ground
Sensor for internal pressure of cylinder 3 Electrical malfunction