Acura TSX / Honda Accord CL. Manual - part 550

 

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Acura TSX / Honda Accord CL. Manual - part 550

 

 

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

YES: Check for debris or clogging at the EVAP canister and the FTP sensor, then go to step 
9.  

NO: Check for debris or clogging at the FTP sensor air tube. If the tube is OK, replace the 
FTP sensor (see FTP SENSOR REPLACEMENT ), then go to step 9.  

9. Install the FTP sensor on the EVAP canister.  

10. Turn the ignition switch ON (II).  

11. Reset the ECM/PCM with the HDS.  

12. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

13. Check for Temporary DTCs or DTC in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC P1454 is indicated, check for poor connections or loose terminals at the FTP 
sensor and the ECM/PCM, then go to step 1 . If any other Temporary DTCs or DTCs are 
indicated, go to the indicated DTC troubleshooting.  

NO: Go to step 14.  

14. Check the FTP SENSOR in the DATA LIST with the HDS. 

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

YES: Troubleshooting is complete.  

NO: Check for poor connections or loose terminals at the FTP sensor and the ECM/PCM, 
then go to step 1 .  

DTC P2422: EVAP CANISTER VENT SHUT VALVE STUCK CLOSED MALFUNCTION 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Open the fuel fill cap for 5 seconds, then tighten it.  

4. Start the engine. Hold the engine speed at 3,000 RPM with no load (in Park or neutral) until the radiator 

fan comes on, then let it idle.  

5. Monitor the OBD STATUS for DTC P2422 in the DTCs MENU with the HDS. 

Does the screen indicate FAILED? 

YES: Go to step 6.  

NO: If the screen indicates PASSED, intermittent failure, system is OK at this time. Check 
for a poor connection or loose terminals at the EVAP canister vent shut valve and 
ECM/PCM. If the screen indicates NOT COMPLETED, go to step 2 and recheck.  

6. Do the DTC CLEAR in the CLEAR MENU with the HDS.  

7. Remove the EVAP canister vent shut valve from the EVAP canister (see EVAP CANISTER VENT 

SHUT VALVE REPLACEMENT ).  

8. Connect the 2P connector to the EVAP canister vent shut valve.  

9. Turn the ignition switch ON (II).  

10. Do the EVAP CVS ON in the INSPECTION MENU with the HDS. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE EVAP System - TSX

  

 

11. Check EVAP canister vent shut valve (A) operation. 

Does the valve operate? 

YES: Check for a blockage in the EVAP canister, then install the EVAP canister vent shut 
valve, and go to step 14 .  

NO: Go to step 12.  

Fig. 34: Checking EVAP Canister Vent Shut Valve Operation 

12. Turn the ignition switch OFF.  

13. Replace the EVAP canister vent shut valve (see EVAP CANISTER VENT SHUT VALVE 

REPLACEMENT ).  

14. Turn the ignition switch ON (II).  

15. Reset the ECM/PCM with the HDS.  

16. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

17. Turn the ignition switch OFF.  

18. Open the fuel fill cap for 5 seconds, then tighten it. 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE EVAP System - TSX

  

 

19. Start the engine. Hold the engine speed at 3,000 RPM with no load (in Park or neutral) until the radiator 

fan comes on, then let it idle.  

20. Check for Temporary DTCs or DTCs in the DTCs MENU with the HDS. 

Are any Temporary DTCs or DTCs indicated? 

YES: If DTC 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 troubleshooting.  

NO: Go to step 21.  

21. Monitor the OBD STATUS for DTC P2422 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 16 and recheck.  

EVAP CANISTER REPLACEMENT 

1. Remove the EVAP canister cover (A). 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE EVAP System - TSX

  

 

Fig. 35: Removing The EVAP Canister Cover 

2. Remove the hoses (A), the FTP sensor 3P connector (B), and the EVAP canister vent shut valve 2P 

connector (C). 

 

2004 Acura TSX 

2004 ENGINE PERFORMANCE EVAP System - TSX

  

 

 

 

 

 

 

 

 

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