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

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 (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   When a DTC other than P0441 (current code) is displayed, go to  A.

   When DTC P2404 (current code) is displayed in addition to P0441 (current code), go to  B.

   When a DTC other than the above is displayed, go to  C.

   1. Go to  2
   2. Check for DTC P2404. Ref. to DTC P2404: EVAP SYSTEM LEAK DETECTION PUMP SENSE CIRCUIT RANGE/PERFORMANCE .
   3. Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to DIAGNOSTIC TROUBLE CODE (DTC) .
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>INSPECTION .

   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.