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

NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Basic Diagnostic Procedure>PROCEDURE .

CHECK DTC .
Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC TROUBLE CODE (DTC) .

DTC Check

Is DTC P0441 displayed? (Current malfunction)

Yes: Go to 2.

No: Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DIAGNOSTIC TROUBLE CODE (DTC) .
CHECK PURGE CONTROL SOLENOID VALVE .
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 .
CHECK EVAPORATIVE EMISSION CONTROL SYSTEM LINE .
Check the evaporative emission control system line.

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.