P0441low severityPowertrain
EVAP Incorrect Purge Flow
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
The EVAP system purge flow is not as expected.
Symptoms
- Check Engine Light
- Failed emissions
Common causes
- Faulty purge valve (stuck open or closed)
- Disconnected purge hose
- Blocked purge port
- Faulty vent valve
Diagnostic steps
- Test purge valve operation
- Check purge flow with scan tool command
- Inspect hoses
- Test vent valve
Repair notes
Replace purge valve. Check hoses for cracks or disconnection.
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