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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) (H4DOTC)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .

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 P0441 displayed? (Current malfunction)

Yes: Go to 2.

No: Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .
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) (H4DOTC)>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) (H4DOTC)>PURGE CONTROL SOLENOID VALVE .
CHECK EVAPORATIVE EMISSION CONTROL SYSTEM LINE.
Turn the ignition switch to OFF.
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.