Mechanics

ACURA TSX SENSOR PROBLEM

2005 Acura TSX • 118,000 miles

Engine code is P2422. What is wrong and how to fix the problem - where is located?
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October 26, 2012.



DTC P2422: EVAP Canister Vent Shut Valve Close Malfunction

Turn the ignition switch ON (II).
Clear the DTC with the HDS.
Turn the ignition switch OFF.
Remove the fuel fill cap, and wait 1 minute.
Check the FTP SENSOR in the DATA LIST with the HDS.

Is it between 0.67 kPa and 0.67 kPa (-0.2 - 0.2 in. Hg, -5 - 5 mmHg), or 2.4 - 2.6 V?

YES - Go to step 6.

NO - Go to step 17.

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 Park or 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 screen indicate FAILED?

YES - Go to step 10.

NO - If the screen indicates PASSED, intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the FTP sensor, or the EVAP canister vent shut valve and the ECM/PCM. If the screen indicates NOT COMPLETED, go to step 7 and recheck.

Clear the DTC with the HDS.
Turn the ignition switch OFF.
Remove the EVAP canister vent shut valve from the EVAP canister.
Connect the 2P connector to the EVAP canister vent shut valve.
Turn the ignition switch ON (II).
Do the 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, then install EVAP canister vent shut valve, and go to step 23.

NO - Replace the EVAP canister vent shut valve, then go to step 23.

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 kPa and 0.67 kPa (-0.2 - 0.2 in. Hg, -5 - 5 mmHg), or 2.4 - 2.6 V?

YES - Check for a blockage in the FTP sensor air tube, then go to step 23.

NO - Go to step 19.

Turn the ignition switch OFF.

Remove the FTP sensor (A) from the EVAP canister with its connector connected.
Turn the ignition switch 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 - 0.2 in. Hg, -5 - 5 mmHg), or 2.4 - 2.6 V?

YES - Check for debris or clogging at the EVAP canister, and the FTP sensor port, then go to step 23.

NO - Replace the FTP sensor, then go to step 23.

Turn the ignition switch 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 (in Park or neutral) until the radiator fan comes on, then let it idle.
Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P1454 and/or P2422 is indicated, check for poor connections or loose terminals at the FTP sensor, or the EVAP canister vent shut valve and the ECM/PCM, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.

NO - Go to step 28.

Monitor the OBD STATUS for DTC P1454 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES - Troubleshooting is complete.

NO - If the screen indicates FAILED, check for poor connections or loose terminals at the FTP sensor, or the EVAP canister vent shut valve and the ECM/ PCM, then go to step 1. If the screen indicates NOT COMPLETED, go to step 26 and recheck.

This is what Alldata shows, looks like there is a need for a scan tool. Do you own one?

Dr. Hagerty
Oct 26, 2012.