Pgm-Fi System: Removal & Installation Acura TL III facelift

A/F Sensor Replacement

Special Tools Required

O2 sensor socket wrench, Snap-on YA8875 or SWR2, or equivalent, commercially available

Scheme 212

1. Disconnect the front A/F sensor 8P connector (A), then remove the A/F sensor (B).
2. Install the parts in the reverse order of removal.

Scheme 213

1. Disconnect the rear A/F sensor 8P connector (A), then remove the rear A/F sensor (B).
2. Install the parts in the reverse order of removal.

Secondary HO2S Replacement

Special Tools Required

O2 sensor socket wrench. Snap-on YA8875 or SWR2, or equivalent, commercially available

Scheme 214

1. Disconnect the front secondary HO2S 4P connector (A), then remove the front secondary HO2S (B).
2. Install the parts in the reverse order of removal.

Scheme 215

1. Disconnect the rear secondary HO2S 4P connector (A), then remove the rear secondary HO2S (B).
2. Install the parts in the reverse order of removal.

Scheme 216

Scheme 217

1. Set the No. 1 piston at top dead center (see step 3 on «VALVE CLEARANCE ADJUSTMENT»(ref-291519-S40986555002008072900000) ).
2. Remove the crankshaft pulley (see «CRANKSHAFT PULLEY REMOVAL AND INSTALLATION»(ref-291519-S16362380932008072900000) ).
3. Remove the upper (see step 10 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ) and lower (see step 11 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ) front covers from the engine.
4. To hold the timing belt adjuster in its current position, thread in the battery clamp bolt hand-tight (see step 13 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ).
5. Loosen the idler pulley bolt about five or six turns, then remove the timing belt from the front camshaft pulley (see step 16 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ).
6. Remove the front camshaft pulley (A).
7. Disconnect the CMP sensor 3P connector (B), then remove the back cover (C).
8. Remove the CMP sensor (A) from the back cover.
9. Install the parts in the reverse order of removal, then install the timing belt (see «TIMING BELT INSTALLATION»(ref-291519-S14008362492008072900000) ).
10. Do the CKP pattern clear/pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-291525-S26410178732008072900000) ).

Scheme 218

1. Remove the crankshaft pulley (see «CRANKSHAFT PULLEY REMOVAL AND INSTALLATION»(ref-291519-S16362380932008072900000) ).
2. Remove the drive belt auto-tensioner (see «DRIVE BELT AUTO-TENSIONER REPLACEMENT»(ref-291517-S11679058432008072900000) ).
3. Remove the upper cover (see step 10 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ) and lower (see step 11 on «TIMING BELT REMOVAL»(ref-291519-S40370943302008072900000) ) front covers from the engine.
4. Remove the CKP sensor (A) from the oil pump.
5. Install the parts in the reverse order of removal.
6. Do the CKP pattern clear/CKP pattern learn procedure with the HDS (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-291525-S26410178732008072900000) ).

Input Shaft (Mainshaft) Speed Sensor Replacement

Note. For A/T models (see INPUT SHAFT (MAINSHAFT) SPEED SENSOR REPLACEMENT ).

Scheme 219

1. Disconnect the input shaft (mainshaft) speed sensor 3P connector (A).
2. Remove the input shaft (mainshaft) speed sensor (B).
3. Install the parts in the reverse order of removal with a new O-ring (C).

Output Shaft (Countershaft) Speed Sensor Replacement

Note. For A/T models (see INPUT SHAFT (MAINSHAFT) SPEED SENSOR REPLACEMENT ).

Scheme 220

1. Disconnect the output shaft (countershaft) speed sensor 3P connector (A).
2. Remove the output shaft (countershaft) speed sensor (B).
3. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 221

1. Remove the engine cover (see step 1 on «REMOVAL»(ref-291513-S13792808682008072900000) ).
2. Remove the fuel rails and the injector base (see «INJECTOR BASE REMOVAL AND INSTALLATION»(ref-291513-S09411323782008072900000) ).
3. Disconnect the knock sensor IP connector (A), then remove the knock sensor (B).
4. Install the parts in the reverse order of removal.

ECM/PCM Replacement

Special Tools Required

1. Honda diagnostic system (HDS) tablet tester
2. Honda interface module (HIM) and an iN workstation with HDS and CM update software
3. HDS pocket tester
4. GNA-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 ECM/PCM after substituting a known-good ECM/PCM, reinstall the original ECM/PCM, then do this procedure. During the procedure, if any READ DATA, WRITE DATA, or other data checks fail, note the failure, then continue.

Scheme 222

Scheme 223

1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch ON (II).
3. Make sure the HDS communicates with the ECM/PCM and other vehicle systems. If it does not, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING (PART 2)»(ref-291526-S28484839382008072900000) ). If you are returning from DLC circuit troubleshooting, skip steps 4 through 7 and 18 through 20, and do the following procedure after replacing the ECM/PCM. Replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-291505-S37399934022008072900000) ), and the engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-291505-S00486617972008072900000) ). Clean the throttle body (see «THROTTLE BODY CLEANING»(ref-291515-S02262611142008072900000) ).
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. NOTE: If the TP POSITION CHECK indicates FAILED, continue with this procedure.
7. Select the REPLACE ECM/PCM MENU, then select READ DATA, and follow the screen prompts. NOTE: Doing this step copies (READS) the engine oil life data from the original ECM/PCM so you can later download (WRITES) it into the new ECM/PCM. If READ DATA indicates FAILED, continue with this procedure.
8. Turn the ignition switch OFF.
9. Jump the SCS line with the HDS.
10. Pull back the carpet.
11. Remove the ducts (A).
12. Disconnect the ECM/PCM connectors (B).
13. Remove the bolts (C), then remove the ECM/PCM (D).
14. Install the parts in the reverse order of removal.
15. Open the SCS line with the HDS.
16. Turn the ignition switch ON (II).
17. Manually input the VIN into the ECM/PCM with the HDS. NOTE: DTC P0630 "VIN Not Programmed or Mismatch" may be stored because the VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.
18. If the READ DATA (engine oil life) failed in step 7 , go to step 21 . Otherwise, go to step 19.
19. Select the PGM-FI system with the HDS.
20. Select the REPLACE ECM/PCM MENU, then WRITE DATA and follow the screen prompt. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
21. Select IMMOBI system with the HDS.
22. Enter the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
23. If the TP POSITION CHECK failed in step 6 , clean the throttle body (see «THROTTLE BODY CLEANING»(ref-291515-S02262611142008072900000) ), then go to step 24.
24. If the READ DATA failed in step 7 or the WRITE DATA failed in step 20 , replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-291505-S37399934022008072900000) ), and engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-291505-S00486617972008072900000) ), then go to step 25.
25. Select PGM-FI system, and reset the ECM/PCM with the HDS.
26. Update the ECM/PCM if it does not have the latest software (see «UPDATING THE ECM/PCM»(ref-291525-S06490175862008072900000) ).
27. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-291528-S20095377152008072900000) ).
28. Do the CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-291525-S26410178732008072900000) ).