P1425low severityPowertrain
Tank Vent Valve Short to Ground
on 2002 Audi A8 4.2L V8 · AWD
What this code means
The ECU detected a short to ground in the tank vent valve circuit. This valve controls airflow into the EVAP canister and its malfunction affects fuel vapor management.
Symptoms
- Check Engine Light
- Fuel vapor odor
- Failed emissions test
Common causes
- Wiring shorted to ground
- Faulty tank vent valve
- Connector damage
- Water intrusion at connector
Diagnostic steps
- Test vent valve resistance
- Inspect wiring for ground shorts
- Check connector for water intrusion
- Test ECU driver output
Repair notes
Repair the wiring short to ground or replace the tank vent valve.
Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1