Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P1454: FTP Sensor Range/Performance Problem DTC P2422: EVAP Canister Vent Shut Valve Stuck Closed Malfunction
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0).
- Remove the fuel fill cap, and wait 1 minute.
- Turn the ignition switch to ON (II).
- Check the FTP SENSOR in the DATA LIST with the HDS.
Is it between -0.67 and 0.67 kPa (-0.2 and 0.2 inHg, -5 and 5 mmHg), or 2.4 and 2.6 V?
YES -Go to step 7.
NO -Go to step 18.
- Install the fuel fill cap.
- Clear the DTC with the HDS.
- Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- Monitor the OBD STATUS for DTC P1454 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES -Go to step 11.
NO -If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM. Also check for a blockage in the vent hoses and the drain joint. If the screen indicates NOT COMPLETED, keep idling until a result comes on.
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0).
- Remove the EVAP canister vent shut valve from the EVAP canister (see EVAP CANISTER VENT SHUT VALVE REPLACEMENT ).
- Connect the 2P connector to the EVAP canister vent shut valve.
- Turn the ignition switch to ON (II).
- Select EVAP CVS ON in the INSPECTION MENU with the HDS.
- Check the EVAP canister vent shut valve (A) operation.
Does the valve operate?
YES -Check for a blockage in the EVAP canister, the vent hoses, and the drain joint, then reinstall the EVAP canister vent shut valve, and Go to step 24.
NO -Replace the EVAP canister vent shut valve (see EVAP CANISTER VENT SHUT VALVE REPLACEMENT ), then Go to step 24.
- Disconnect the air tube (A) from the FTP sensor (B).
- Check the FTP SENSOR in the DATA LIST with the HDS.
Is it between -0.67 and 0.67 kPa (-0.2 and 0.2 inHg, -5 and 5 mmHg), or 2.4 and 2.6 V?
YES -Check for a blockage in the FTP sensor air tube or the vent, then Go to step 24.
NO -Go to step 20.
- Turn the ignition switch to LOCK (0).
- Remove the FTP sensor (A) from the EVAP canister with its connector connected (see FTP SENSOR REPLACEMENT ).
- Turn the ignition switch to ON (II).
- Check the FTP SENSOR in the DATA LIST with the HDS.
Is it between -0.67 kPa and 0.67 kPa (-0.2 and 0.2 inHg, -5 and 5 mmHg), or 2.4 and 2.6 V?
YES -Check for debris or clogging at the EVAP canister and the FTP sensor port, then Go to step 24.
NO -Replace the FTP sensor (see FTP SENSOR REPLACEMENT ), then Go to step 24.
- Turn the ignition switch to ON (II).
- Reset the PCM with the HDS.
- Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).
- Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P1454 and/or P2422 indicated?
YES -Check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM, then Go to step 1.
NO -Go to step 29.
- Monitor the OBD STATUS for DTC P1454 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 28, go to the indicated DTC's troubleshooting.
NO -If the screen indicates FAILED, check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM, then Go to step 1. If the screen indicates NOT COMPLETED, keep idling until a result comes on.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.