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Acura RL. Manual - part 487

10. Clear the DTC with the HDS.

11. Turn the ignition switch OFF.

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

PURGE VALVE REPLACEMENT ).

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

14. Turn the ignition switch ON (II).

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

16. Check the EVAP canister vent shut valve (A) operation.

Fig. 32: 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, then install the EVAP canister vent shut valve, and
go to step 25.

NO - Replace the EVAP canister vent shut valve (see EVAP CANISTER PURGE VALVE
REPLACEMENT ), then go to step 25.

17. Remove the trunk floor trim panel.

18. Remove the EVAP access panel from the floor.

19. Disconnect the air tube (A) from the FTP sensor (B).

2007 Acura RL

2005-08 ENGINE PERFORMANCE EVAP System - RL

Friday, June 05, 2009 2:30:48 PM

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Fig. 33: Identifying Air Tube And FTP Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.

20. 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 25.

NO - Go to step 21.

21. Turn the ignition switch OFF.

22. Remove the FTP sensor (A) from the EVAP canister with its connector connected (see FTP

SENSOR REPLACEMENT ).

Fig. 34: Identifying FTP Sensor
Courtesy of AMERICAN HONDA MOTOR CO., INC.

23. Turn the ignition switch ON (II).

24. 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 25.

NO - Replace the FTP sensor (see FTP SENSOR REPLACEMENT ), then go to step 25.

25. Turn the ignition switch ON (II).

26. Reset the PCM with the HDS.

27. Do the PCM idle learn procedure (see PCM IDLE LEARN PROCEDURE ).

28. 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.

29. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P1454 and/or P2422 indicated?

2007 Acura RL

2005-08 ENGINE PERFORMANCE EVAP System - RL

Friday, June 05, 2009 2:30:48 PM

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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 30.

30. Monitor the OBD STATUS for DTC PI 454 and/or P2422 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 29,
go to the INDICATED DTCS 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.

EVAP CANISTER REPLACEMENT

1. Remove the propeller shaft (see PROPELLER SHAFT REMOVAL ).

2. Remove the rear differential (see REAR DIFFERENTIAL REMOVAL ).

3. Disconnect the connectors (A) and the hoses (B).

Fig. 35: Identifying Connectors, Hoses And EVAP Canister With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

4. Remove the EVAP canister (A).

2007 Acura RL

2005-08 ENGINE PERFORMANCE EVAP System - RL

Friday, June 05, 2009 2:30:48 PM

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Fig. 36: Identifying EVAP Canister With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

FTP SENSOR REPLACEMENT

1. Remove the trunk floor.

2. Remove the access panel (A) from the floor.

Fig. 37: Identifying Access Panel
Courtesy of AMERICAN HONDA MOTOR CO., INC.

3. Remove the FTP sensor (A).

2007 Acura RL

2005-08 ENGINE PERFORMANCE EVAP System - RL

Friday, June 05, 2009 2:30:48 PM

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