DTC P00FE, P2451

DTC P00FE  : Evaporative Emission (EVAP) Vent Line Blockage DTC P2451  : Fuel Vapor Containment Valve Stuck Close

Special Tools Required 

Vacuum/Pressure Gauge, 0-4 inHg 07JAZ-001000B 

Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available 

DTC (PGM-FI)

1. Problem verification

   -1. Turn the vehicle to the ON mode.

   -2. Clear the DTC with the HDS.

   -3. Turn the vehicle to the OFF (LOCK) mode.

   -4. Turn the vehicle to the ON mode.

   -5. Select the EVAP TEST in the Function Test menu, then select the FUNCTION TEST with the HDS.

   NOTE: Perform the procedure with the fuel level is below 85 %.

   EVAP TEST

   Are both DTC P00FE and P2451 results OK?

   YES 

   If the test result is PASSED, there is an intermittent failure and the system is OK at this time. Check for poor connections or loose terminals at the fuel vapor containment valve and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot .

   NO 

   Go to step 2.

2. Vent tube visual check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Remove the fuel tank .

   -3. Disconnect the vent tube (A) between the fuel vapor containment valve (B) and EVAP canister.

   Courtesy of HONDA, U.S.A., INC.

   -4. Check for a blockage in the vent tube.

   Is the vent tube OK?

   YES 

   Go to step 3.

   NO 

   Remove the blockage in the vent tube (EVAP canister side).

3. Fuel vapor containment valve check

   -1. Remove the fuel vapor containment valve from the fuel tank .

   -2. Disconnect the vent tube (EVAP canister side) from the fuel vapor containment valve (A). Connect the vacuum hose (B) to the fuel vapor containment valve, then connect a vacuum pump/gauge, 0-30 inHg, to the vacuum hose as shown.

   Courtesy of HONDA, U.S.A., INC.

   -3. Connect the fuel vapor containment valve 2P connector.

   -4. Turn the vehicle to the ON mode.

   -5. Slowly apply vacuum to the hose.

   -6. Select the EVAP TEST in the Function Test menu, then select the SINGLE SOLENOID TEST with the HDS.

   EVAP TEST

   -7. Select the Fuel Vapor Containment Valve (FTCV) in the SINGLE SOLENOID MENU with the HDS.

   Does the vacuum release immediately?

   YES 

   Go to step 4.

   NO 

   Replace the fuel vapor containment valve .

4. FTP sensor performance check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Install all removed parts .

   -3. Remove the access panel .

   -4. Remove the FTP sensor with its connector connected .

   NOTE: The FTP sensor can be removed without removing the fuel tank.

   -5. Connect the T-fitting (A), the vacuum pump/gauge, 0-30 inHg, and the vacuum pump to the FTP sensor (B) as shown.

   Courtesy of HONDA, U.S.A., INC.

   -6. Turn the vehicle to the ON mode.

   -7. Check and record the FTP sensor reading in the DATA LIST with the HDS.

   Signal	Current conditions
   	Values	Unit
   Tank Internal Pressure

   Data List

   -8. Slowly apply about 1.3 kPa (0.4 inHg, 10 mmHg) of vacuum to the hose.

   -9. Check FTP SENSOR in the DATA LIST with the HDS.

   Signal	Current conditions
   	Values	Unit
   Tank Internal Pressure

   Data List

   Does the value change?

   YES 

   Check for blockage in the vent tube between the fuel tank and the fuel vapor containment valve. If there is no blockage, replace the vent tube.

   NO 

   Check for the blockage in the FTP sensor port. If there is no blockage, replace the FTP sensor .