P1410low severityPowertrain
Tank Ventilation Valve Circuit Short to Positive
on 2002 Audi A8 4.2L V8 · AWD
What this code means
The ECU detected a short to positive voltage in the EVAP tank ventilation valve (purge valve) circuit. The purge valve cannot be properly controlled, affecting evaporative emission system operation.
Symptoms
- Check Engine Light
- Fuel odor near vehicle
- Failed emissions test
Common causes
- Wiring short to battery voltage
- Faulty purge valve solenoid
- Damaged connector
- Wiring harness chafe near power source
Diagnostic steps
- Test purge valve solenoid resistance
- Inspect wiring for shorts to power
- Check connector condition
- Verify voltage at purge valve with key on engine off
Repair notes
Repair the wiring short or replace the purge 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