P0441

Tests 1 - 3:

Tests 4 - 7:

SYMPTOM
P0441 EVAP PURGE FLOW MONITOR FAILURE

WHEN MONITORED
With engine temperature greater than 170 °F, fuel control in closed loop, engine idling for 2 minutes, no low fuel, MAP less than 15.7 inches mercury and barometric altitude less than 8000 feet.

SET CONDITION
After having passed the Leak Detection Pump (LDP) test, no air flow through the evaporative system is detected by the EVAP monitor.

POSSIBLE CAUSES
- DTC not equal to freeze frame DTC
- Evaporative purge solenoid contaminated
- EVAP purge solenoid
- Vacuum hoses damaged or plugged