P0441

Tests 359 - 364:

Tests 365 - 366:

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 flow through the evaporative system is detected by the evap monitor.

POSSIBLE CAUSES
- Vacuum harness intermittent defect
- Proportional purge solenoid vacuum supply defective
- Purge hose defective (canister to fuel tank)
- Purge hose defective (solenoid to canister)
- Proportional purge solenoid defective
- EVAP canister defective