Pgm-Fi System: Removal & Installation Honda Ridgeline I

A/F Sensor Replacement

Special Tools Required

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

Scheme 231

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 232

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, SP Tools 93750, or equivalent, commercially available

Scheme 233

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 234

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 235

1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-219954-S42492356872006021600000) ).
2. Remove the intake manifold cover (see step 1 under «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-219953-S31522250982006021600000) ).
3. Disconnect the ECT sensor 1 2P connector (A).
4. Remove ECT sensor 1 (B).
5. Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see «COOLANT REPLACEMENT»(ref-219954-S42492356872006021600000) ).

Scheme 236

1. Drain the engine coolant (see «COOLANT REPLACEMENT»(ref-219954-S42492356872006021600000) ).
2. Remove the intake manifold cover (see step 1 under «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-219953-S31522250982006021600000) ).
3. Disconnect the ECT sensor 2 2P connector (A).
4. Remove ECT sensor 2 (B).
5. Install the parts in the reverse order of removal with a new O-ring (C), then refill the radiator with engine coolant (see «COOLANT REPLACEMENT»(ref-219954-S42492356872006021600000) ).

Scheme 237

1. Remove the intake manifold (see «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-219953-S31522250982006021600000) ).
2. Remove the injector rails and the base.
3. Disconnect the knock sensor 1P connector (A), then remove the knock sensor (B).
4. Install the parts in the reverse order of removal.

Scheme 238

1. Remove the intake manifold cover (see step 1 under «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-219953-S31522250982006021600000) ).
2. Disconnect the IAT sensor 2P connector (A).
3. Remove the IAT sensor (B).
4. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 239

1. Move the auto-tensioner to remove tension from the drive belt, then remove the belt (see «DRIVE BELT REPLACEMENT»(ref-219947-S22006494052006021600000) ).
2. Remove the crankshaft pulley (see «CRANKSHAFT PULLEY REMOVAL AND INSTALLATION»(ref-219950-S13471870002006021600000) ).
3. Remove the upper and lower front covers from the engine (see «TIMING BELT INSPECTION»(ref-219950-S34383141872006021600000) ).
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 (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-219956-S37234658712006021600000) ).

Scheme 240

Scheme 241

1. Remove the timing belt (see «TIMING BELT INSPECTION»(ref-219950-S34383141872006021600000) ).
2. Remove the front camshaft pulley (CMP sensor pulse plate) (A).
3. Disconnect the CMP sensor connector (B), then remove the back cover (C).
4. Remove the CMP sensor (A) from the back cover.
5. Install the parts in the reverse order of removal. Install the timing belt (see «TIMING BELT INSTALLATION»(ref-219950-S14384500792006021600000) ).
6. Do the CKP pattern clear/CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-219956-S37234658712006021600000) ).

Scheme 242

1. Remove the intake manifold cover (see step 1 under «INTAKE MANIFOLD REMOVAL AND INSTALLATION»(ref-219953-S31522250982006021600000) ).
2. Disconnect the MAP sensor connector (A).
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

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 PCM after substituting a known-good PCM, 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.

Scheme 243

Scheme 244

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 PCM and other vehicle systems. If it doesn't, go to the «DLC CIRCUIT TROUBLESHOOTING»(ref-299652-S32992582592008092500000) . 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»(ref-219952-S16235478832006021600000) ) and the engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-219952-S23763506022006021600000) ). Clean the throttle body (see «THROTTLE BODY CLEANING»(ref-219962-S09033634492006021600000) ).
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 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 PCM so you can later download (WRITE) it into the new 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. Remove the cover (D).
11. Disconnect PCM connectors A, B, and C. NOTE: PCM connectors A, B, and C have symbols (A=[], B=delta, C=o) embossed on them for identification.
12. Remove the bolts (E), then remove the PCM (F).
13. Install the parts in the reverse order of removal.
14. Turn the ignition switch ON (II).
15. Manually input the VIN to the PCM with the HDS. 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.
16. If the READ DATA (engine oil life) failed in step 7 , go to step 19 . Otherwise, go to step 17.
17. Select the PGM-FI system with the HDS.
18. Select the REPLACE PCM MENU, then select WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue this procedure.
19. Select IMMOBI system with the HDS.
20. Enter the immobilizer code with the PCM replacement procedure in the HDS, it allows you to start the engine.
21. If the TP POSITION CHECK failed in step 6 , clean the throttle body (see «THROTTLE BODY CLEANING»(ref-219962-S09033634492006021600000) ), then go to step 22.
22. If the READ DATA failed in step 7 or the WRITE DATA failed in step 18 , replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-219952-S16235478832006021600000) ) and the engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-219952-S23763506022006021600000) ), then go to step 23.
23. Select PGM-FI system, and reset the PCM with the HDS.
24. Update the PCM if it does not have the latest software (see «PCM UPDATING AND SUBSTITUTION FOR TESTING»(ref-219956-S29187290912006021600000) ).
25. Do the PCM idle learn procedure (see «PCM IDLE LEARN PROCEDURE»(ref-219960-S21279730262006021600000) ).
26. Do the CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-219956-S37234658712006021600000) ).