Pgm-Fi System (V6): Removal & Installation Honda Accord VII

A/F Sensor Replacement

Special Tools Required

O2 sensor socket wrench, Snap-on YA8875, SP Tools 93750, or equivalent, commercially available

Scheme 549

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

Scheme 550

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

Secondary HO2S Replacement

Special Tools Required

O2 sensor socket wrench, Snap-on YA8875, SP Tools 93750, or equivalent, commercially available

Scheme 551

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

Scheme 552

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

Scheme 553

1. Remove the air cleaner (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-220845-S40896470842006022100000) ).
2. Disconnect the ECT sensor/ECT sensor 1 connector (A).
3. Remove the ECT sensor/ECT sensor 1 (B).
4. Install the sensor in the reverse order of removal with a new O-ring (C). Then refill the radiator with engine coolant (see «COOLANT REPLACEMENT»(ref-220837-S10396155402006022100000) ).

Scheme 554

1. Disconnect the IAT sensor connector (A).
2. Remove the IAT sensor (B).
3. Install the sensor in the reverse order of removal with a new O-ring (C).

Scheme 555

1. Move the auto-tensioner to remove tension from the drive belt, then remove the belt (see «DRIVE BELT REPLACEMENT»(ref-220829-S32700151622006022100000) ).
2. Remove the crankshaft pulley (see «CRANKSHAFT PULLEY REMOVAL AND INSTALLATION»(ref-220833-S04564023202006022100000) ).
3. Remove the upper and lower timing belt covers from the engine (see step 9 in «TIMING BELT REMOVAL»(ref-220833-S29107205842006022100000) ).
4. Remove the CKP sensor A/B (A) from the oil pump.
5. Install the sensor in the reverse order of removal.
6. Do the CKP pattern clear/pattern learn procedure (see «CKP PATTERN CLEAR/CKP PATTERN LEARN»(ref-220839-S42940087232006022100000) ).

Scheme 556

1. Remove the intake manifold (see «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-220836-S20998555792006022100000) ).
2. Remove the fuel rails and the intake runner base.
3. Disconnect the knock sensor connector (A), then remove the knock sensor (B).
4. Install the sensor in the reverse order of removal.

Scheme 557

Scheme 558

1. Set the No. 1 piston at top dead center (see «TIMING BELT REMOVAL»(ref-220833-S29107205842006022100000) ).
2. Remove the upper covers from the engine (see step 9 in «TIMING BELT REMOVAL»(ref-220833-S29107205842006022100000) ).
3. To hold the timing belt adjuster in its current position, thread in the battery clamp bolt hand-tight (see step 13 in «TIMING BELT REMOVAL»(ref-220833-S29107205842006022100000) ).
4. Loosen the idler pulley bolt about five or six turns, then remove the timing belt from the front camshaft pulley (see step 15 in «TIMING BELT REMOVAL»(ref-220833-S29107205842006022100000) ).
5. Remove the front camshaft pulley (A).
6. Disconnect the CMP sensor connector (B), then remove the back cover (C).
7. Remove the CMP sensor (A) from the back cover.
8. Install the sensor in the reverse order of removal. To install the timing belt (see «TIMING BELT INSTALLATION»(ref-220833-S29492077242006022100000) ).
9. Do the CKP pattern clear/pattern learn procedure (see «CKP PATTERN CLEAR/CKP PATTERN LEARN»(ref-220839-S42940087232006022100000) ).

Scheme 559

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

Scheme 560

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

Scheme 561

1. Disconnect the MAP sensor connector (A).
2. Remove the screw (B).
3. Remove the MAP sensor (C).
4. Install the sensor in the reverse order of removal with a new O-ring (D).

Scheme 562

1. Remove the throttle body (see «THROTTLE BODY REMOVAL/INSTALLATION»(ref-220845-S15013774242006022100000) ).
2. Disconnect the ECT sensor 2 connector (A).
3. Remove ECT sensor 2 (B).
4. Install the sensor in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see «COOLANT REPLACEMENT»(ref-220837-S10396155402006022100000) ).

Scheme 563

Scheme 564

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 ECIW PCM. If it doesn't, skip steps 4 to 6 and 17 and clean the throttle body (see «THROTTLE BODY CLEANING»(ref-220845-S25094651542006022100000) ) and replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-220835-S22878050042006022100000) ) after this procedure
4. Select the INSPECTION MENU with the HDS.
5. Do the TP POSITION CHECK in the ETCS TEST.
6. Select READ DATA in REPLACE ECM/PCM with the HDS.
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Remove the center lower covers (A).
10. Remove the duct (B).
11. Disconnect ECM/PCM connectors (C).
12. Remove the bolts (D), then remove the ECM/PCM (E).
13. Install the ECM/PCM in the reverse order of removal.
14. Open the SCS line with the HDS.
15. Turn the ignition switch ON (II). NOTE: 2005-2007 models: «DTC P0630: VIN Not Programmed or Mismatch»(ref-220840-S37598433972006022100000) may be stored because the VIN has not been programmed into the ECM/PCM; ignore it, and continue this procedure.
16. Input the VIN to the ECM/PCM with the HDS.
17. Select WRITE DATA in the REPLACE ECM/PCM with the HDS.
18. Rewrite the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
19. Reset the ECM/PCM with the HDS.
20. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-220843-S14332728472006022100000) ).
21. Do the CKP pattern clear/pattern learn procedure (see «CKP PATTERN CLEAR/CKP PATTERN LEARN»(ref-220839-S42940087232006022100000) ).

ECM/PCM Replacement 06-07 Models

Note. Make sure the HDS is loaded with the latest software version. If you are replacing the 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.

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.
3. Make sure the HDS communicates with the ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting. If you are returning from DLC circuit troubleshooting, skip steps 4 through 9 and 20 through 25m and do the following procedure after replacing the ECM/PCM.
4. Select the PGM-FI system with the HDS.
5. Select the INSPECTION MENU with the HDS.
6. Select the ECTS TEST, then select the TP POSITION CHECK, and follow with this procedure.
7. Select the REPLACE ECM/PCM MENU, then 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. A/T: Select the A/T SYSTEM with the HDS.
9. A/T: Select the REPLACE TCM/PCM, then 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.
10. Turn the ignition switch OFF.
11. Jump the SCS line with the HDS.
12. Remove the center lower covers (A).
13. Remove the duct (B).
14. Disconnect the ECM/PCM connectors.
15. Remove the bolts (D), then remove the ECM/PCM (E).
16. Install the ECM/PCM in the reverse order of removal.
17. Open the SCS line with the HDS.
18. Turn the ignition switch ON.
19. 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 with the HDS.
20. If the READ DATA (engine oil life) failed in step 7, go to step 23. Otherwise, go to step 21.
21. Select the PGM-FI system with the HDS.
22. Select the REPLACE ECM/PCM MENU, then WRITE DATA and follow the screen prompt.
23. A/T: If the READ DATA (ATF life) failed in step 9, go to step 26. Otherwise go to step 24.
24. A/T: Select the A/T SYSTEM with the HDS.
25. A/T: Select the REPLACE TCM/PCM MENU, then WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
26. Select IMMOBI system with the HDS.
27. Enter the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
28. If the TP POSITION CHECK failed in step 6, clean the throttle body, then go to step 29.
29. If the ERAD DATA failed in step 22, replace the engine oil, and engine oil filter, then go to step 31.
30. If the READ DATA failed in step 9, or the WRITE DATA failed in step 25, replace the ATF, then go to step 31.
31. Select PGM-FI system, and reset the ECM/PCM with the HDS.
32. Update the ECM/PCM if it does not have the latest software.
33. Do the ECM/PCM idle learn procedure.
34. Do the CKP pattern learn procedure.