DTC P1451: EVAP System Clog Detected (Pipe): Notes
- -
DTC detecting condition:
Detected when two consecutive driving cycles with fault occur.
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 DRAIN TUBE BETWEEN CANISTER AND LEAK CHECK VALVE ASSEMBLY
.
Check the drain tube between the canister and leak check valve assembly.
Is the drain tube between canister and leak check valve assembly clogged?
Yes : Replace the drain tube between the canister and leak check valve assembly. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO)>CANISTER .
No : Go to 2.
- CHECK HOSE AND TUBE BETWEEN CANISTER AND FUEL TANK
.
Check the hose and tube between the canister and fuel tank.
Are the hose and tube between the canister and fuel tank clogged?
Yes : Replace the hose or tube between the canister and fuel tank. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO)>CANISTER . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>FUEL TANK .
No : Replace the canister. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO)>CANISTER .
After the operation is complete, go to the next step. Go to 3.
- CHECK EVAPORATIVE EMISSION CONTROL SYSTEM
.
- Perform the corresponding inspection mode. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>INSPECTION MODE .
- Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
Is DTC P1451 displayed? (Current code)
Yes : Replace the leak check valve assembly. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DO)>LEAK CHECK VALVE ASSEMBLY .
No : End.
- CHECK DRAIN TUBE BETWEEN CANISTER AND LEAK CHECK VALVE ASSEMBLY
.