P0461

System/Wiring Diagram:

SYSTEM/CIRCUIT DESCRIPTION
While engine running, ECM (PCM) closes EVAP canister air valve and opens EVAP canister purge valve. If EVAP emission control system is in good condition, EVAP emission control system pressure that detected by fuel pressure sensor becomes down. After that, ECM (PCM) closes EVAP canister purge valve leaving EVAP canister air valve is closed. If EVAP emission control system is in good condition, the fuel tank pressure rises specified rate.

DTC Detecting Condition And Trouble Area:

DTC CONFIRMATION PROCEDURE
Perform "DTC TROUBLESHOOTING TABLE STEP 3".

Step 1 - 5:

Step 6 - 7:

DTC TROUBLESHOOTING