P0441

Tests 1 - 3:

Tests 4 - 8:

SYMPTOM
P0441 - EVAP PURGE FLOW MONITOR

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 in.Hg and barometric altitude less than 8000 feet.

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

POSSIBLE CAUSES
- EVAP canister
- EVAP purge hose (canister to fuel tank)
- EVAP purge hose (solenoid to canister)
- EVAP purge solenoid vacuum supply
- EVAP purge solenoid (leaky/stuck open)
- EVAP purge solenoid (stuck closed)
- Vacuum harness intermittent problem