DTC P1454, P2422: FTP Sensor Range/Performance Problem; EVAP Canister Vent Shut Valve Stuck Closed Malfunction

WARNING: This page is about a different car, the 2013 Honda Fit, 2012 Honda Fit, 2011 Honda Fit, 2010 Honda Fit, and 2009 Honda Fit. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review GENERAL TROUBLESHOOTING INFORMATION .

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 in.Hg, - 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 (A/T in P or N, M/T in neutral) 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 HDS indicate FAILED?

YES: Go to step 11.

NO: If the HDS 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 ECM/PCM. Also check for a blockage in the vent hoses and the drain joint. If the HDS 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.

Fig 1: Identifying EVAP Canister Vent Shut Valve
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Does the valve operate?

YES: Check for a blockage in the EVAP canister, the vent hoses, and the drain joint, then install 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).

Fig 2: Identifying Air Tube & FTP Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 in.Hg, -5 and 5 mmHg), or 2.4 and 2.6 V?

YES: Check for a blockage in the FTP sensor air tube or 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 ).

Fig 3: Identifying FTP Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.
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 in.Hg, -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 ECM/PCM with the HDS.
Do the ECM/PCM IDLE LEARN PROCEDURE .
Start the engine. Hold the engine speed at 3, 000 rpm without load (A/T in P or N, M/T in neutral) 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 ECM/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 HDS 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 HDS indicates FAILED, check for poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the ECM/PCM, then go to step 1. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.