Acura RL. Manual - part 718

3. Remove the IAT sensor (B).

4. Install the parts in the reverse order of removal with a new O-ring (C).

MAP SENSOR REPLACEMENT

1. Remove the engine cover (see step 1 under INTAKE MANIFOLD REMOVAL AND

INSTALLATION ).

2. Disconnect the MAP sensor connector (A).

Fig. 217: Identifying MAP Sensor Connector And Screw With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

3. Remove the screw (B).

4. Remove the MAP sensor (C).

5. Install the parts in the reverse order of removal with a new O-ring (D).

PCM REPLACEMENT

Special Tools Required



Honda diagnostic system (HDS) tablet tester



Honda interface module (HIM) and an iN workstation with HDS and CM update software



HDS pocket tester



GIMA-600 and an iN workstation with HDS and CM update software

NOTE:



Make sure the HDS is loaded with the latest software version.



If you are replacing the PCM after substituting a known-good PCM,

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:35:00 PM

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the

dashboard.

Fig. 218: Identifying HDS To Data Link Connector (DLC)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Turn the ignition switch ON (II).

3. Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the

DLC CIRCUIT TROUBLESHOOTING . If you are returning from DLC circuit troubleshooting,
skip steps 4 through 9, 16 through 18, 21, and 22, then do this after replacing the PCM:



Replace the engine oil (see ENGINE OIL REPLACEMENT ) and the engine oil filter (see
ENGINE OIL FILTER REPLACEMENT ).



Clean the throttle body (see THROTTLE BODY CLEANING ),

4. Select the PGM-FI system with the HDS.

5. Select the INSPECTION MENU with the HDS.

6. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the screen prompts.

7. Select the REPLACE PCM MENU, then select READ DATA and follow the screen prompts.

8. Turn the ignition switch OFF.

9. Jump the SCS line with the HDS.

10. Remove the panels (A) (see step 5 under CENTER CONSOLE REMOVAL/INSTALLATION ),

reinstall the original PCM, then do this procedure.



During the procedure, if any READ DATA, WRITE DATA, or other data
checks fail, note the failure, then continue.

NOTE:

If the TP POSITION CHECK indicates FAILED, continue with this
procedure.

NOTE:



Doing this step copies (READS) the engine oil life data from the
original PCM so you can later download (WRITE) it into the new
PCM.



If READ DATA indicates FAILED, continue with this procedure.

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:35:00 PM

and pull back the carpet.

Fig. 219: Identifying Panels, PCM Connectors, Ducts And Bolts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

11. Remove the ducts (B).

12. Disconnect the PCM connectors (C).

13. Remove the bolts (D), then remove the PCM (E).

14. Install the parts in the reverse order of removal.

15. Turn the ignition switch ON (II).

16. Manually input the VIN to the PCM with the HDS.

17. If the READ DATA (engine oil life) failed in step 7, go to step 20. Otherwise, go to step 18.

18. Select the PGM-FI system with the HDS.

19. Select the REPLACE PCM MENU, then select WRITE DATA and follow the screen prompts.

20. Select IMMOBI system with the HDS.

21. Enter the immobilizer code with the PCM replacement procedure in the HDS, it allows you to start the

engine.

22. If the TP POSITION CHECK failed in step 6, clean the throttle body (see THROTTLE BODY

CLEANING ), then go to step 23.

23. If the READ DATA failed in step 7 or the WRITE DATA failed in step 19, replace the engine oil (see

OIL PRESSURE TEST ) and engine oil filter (see ENGINE OIL FILTER REPLACEMENT ),
then go to step 24.

24. Select PGM-FI system, and reset the PCM with the HDS.

25. Update the PCM if it does not have the latest software (see UPDATING THE PCM ).

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

NOTE:

DTC P0630 "VIN Not Programmed or Mismatch" may be stored because
the VIN has not been programmed into the PCM, ignore it, and continue
this procedure.

NOTE:

If the WRITE DATA indicates FAILED, continue this procedure.

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:35:00 PM

27. Do the CKP pattern learn procedure (see CRANK (CKP) PATTERN CLEAR/CRANK (CKP)

PATTERN LEARN ).

2007 Acura RL

2005-08 ENGINE PERFORMANCE PGM-FI System - RL

Friday, June 05, 2009 2:35:00 PM

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