Tank Vent Valve Short to Ground
2009-2009 Audi R8 5.2L V10 (Gen 1, 525hp)
The 2009 Audi R8 is equipped with a 5.2L V10 engine. Below you'll find detailed p1425 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1425 on Other Vehicles
Common Questions
What does code P1425 mean on a 2009-2009 Audi R8?
P1425 stands for "Tank Vent Valve Short to Ground". 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.
What are the symptoms of P1425 on a Audi R8?
Common symptoms of P1425 include: Check Engine Light, Fuel vapor odor, Failed emissions test.
What causes P1425 on a 2009-2009 Audi R8?
Common causes of P1425 include: Wiring shorted to ground, Faulty tank vent valve, Connector damage, Water intrusion at connector.
Last updated: March 2026