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Home >> Mitsubishi >> 2002 >> Montero XLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0441: EVAP Emission Control System Incorrect Purge Flow >> Test Procedure
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Test Procedure

  1. Turn ignition on. Using scan tool, select actuator test item No. 8 (purge solenoid) and turn on (open) purge solenoid. When actuated, purge solenoid should make operating sound and vibrate. If purge solenoid does not operate as specified, replace EVAP emission purge solenoid and go to step  4. If purge solenoid operates as specified, go to next step.
  2. Turn ignition on. Using scan tool, select actuator test item No. 29 (ventilation solenoid) and turn on (open) ventilation solenoid. When actuated, purge solenoid should make operating sound and vibrate. If ventilation solenoid does not operate as specified, replace EVAP emission ventilation solenoid and go to step  4. If ventilation solenoid operates as specified, go to next step.
  3. Check EVAP system purge control solenoid vent hoses. Check for a clogged air filter. Repair or replace if necessary. Then go to next step. If hoses and air filter are OK, refer to DTC P0451, DTC P0452 &/OR DTC P0453  and troubleshoot.
  4. Test drive vehicle following OBD-II drive cycle EVAP system leak monitor pattern. See EVAP SYSTEM LEAK MONITOR  under OBD-II DRIVE CYCLES under VERIFYING REPAIRS. Check for DTCs. If DTC P0441 is output, retry diagnostic procedure. If DTC P0441 is not output, inspection is complete.
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