DTC P0441: EVAP System (CPC) Incorrect Purge Flow: Notes

1. - 

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

Improper idling

1. CHECK DTC  .
   1. Turn the ignition switch to ON.
   2. Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC other than P0441 displayed? (Current malfunction)

   Yes  : Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .

   No  : Go to  2 .

2. CHECK PURGE CONTROL SOLENOID VALVE  .

   Select [CPC Solenoid Valve] in [Active Test] to operate the purge control solenoid valve using the Subaru Select Monitor.

   NOTE: For detailed operation procedures, refer to the "Active Test". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>ACTIVE TEST .

   Does the purge control solenoid valve operate?

   Yes  : Go to  3 .

   No  : Replace the purge control solenoid valve. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO)>PURGE CONTROL SOLENOID VALVE .

3. CHECK EVAPORATIVE EMISSION CONTROL SYSTEM LINE  .
   1. Turn the ignition switch to OFF.
   2. Check the evaporative emission control system line. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL DELIVERY AND EVAPORATION LINES .

   Are there holes, cracks, clogging, or disconnection, misconnection of hoses or pipes in evaporative emission control system?

   Yes  : Repair or replace the hoses or pipes.

   No  : Repair the poor contact of ECM connector.