Pgm-Fi System: Removal & Installation Honda Fit I

A/F Sensor Replacement

Special Tools Required

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

Scheme 230

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

Secondary HO2S Replacement

Special Tools Required

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

Scheme 231

Scheme 232

1. Remove the center console (see «CENTER CONSOLE REMOVAL/INSTALLATION»(ref-291439-S40134560872008072800000) ), and the rear heater upper duct.
2. Disconnect the secondary HO2S connector (A).
3. Remove the secondary HO2S (A).
4. Install the parts in the reverse order of removal.

Scheme 233

1. Remove the air cleaner (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-291400-S28864655392008072800000) ).
2. Disconnect the CMP sensor connector (A).
3. Remove the CMP sensor (B).
4. Install the parts in the reverse order of removal with a new O-ring (C).

Scheme 234

1. Disconnect the CKP sensor connector (A).
2. Remove the CKP sensor (B).
3. Install the parts in the reverse order of removal with a new O-ring (C).
4. Do the CKP pattern clear/pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-291410-S23094343812008072800000) ).

Scheme 235

1. Remove the air cleaner (see «AIR CLEANER REMOVAL/INSTALLATION»(ref-291400-S28864655392008072800000) ).
2. Disconnect the VSS connector (A).
3. Remove the VSS (B).
4. Install the parts in the reverse order removal with new O-ring (C).

Scheme 236

1. Remove the intake manifold (see «REMOVAL»(ref-291398-S32446269782008072800000) ).
2. Disconnect the knock sensor connector (A).
3. Remove the knock sensor (B).
4. Install the parts in the reverse order of removal.

Scheme 237

Scheme 238

Scheme 239

1. Make sure you have the anti-theft code for the audio system.
2. Remove the battery.
3. Remove the under-hood fuse/relay box.
4. Remove the under-hood fuse/relay box lower cover (A) from the fuse/relay box.
5. Remove the No. 3 IG (50 A) fuse (A) and the No. 1 BATTERY (80 A) fuse (B).
6. Disconnect the ELD 3P connector (A), then remove the ELD (B).
7. Install the parts in the reverse order of removal.
8. Reinstall the battery.
9. Enter the anti-theft code for the audio system.
10. Set the clock.

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. GNA600 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 240

Scheme 241

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 doesn't, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING (PART 1)»(ref-291411-S14160038532008072800000) ). If you are returning from DLC circuit troubleshooting, skip steps 4 through 9 , 17 through 22 , and 25 through 27 , and do this after replacing the ECM/PCM: Replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-291390-S34076846442008072800000) ) and the engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-291390-S35505996992008072800000) ). Replace the ATF (A/T) (see «ATF REPLACEMENT»(ref-291388-S16795412632008072800000) ). Clean the throttle body (see «THROTTLE BODY CLEANING»(ref-291400-S23924038352008072800000) ).
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 (WRITE) 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 MENU, then select READ DATA and follow the screen prompts. NOTE: Doing this step copies (READS) the ATF 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.
10. Turn the ignition switch OFF.
11. Jump the SCS line with the HDS.
12. Remove the passenger's dashboard under cover (see «PASSENGER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION»(ref-291426-S20043350842008072800000) ), the side kick panel (see «TRIM REMOVAL/INSTALLATION - DOOR AREAS»(ref-291427-S28882963482008072800000) ), and the glove box (see «GLOVE BOX REMOVAL/INSTALLATION»(ref-291426-S22436581622008072800000) ).
13. Disconnect the connectors (A), and remove the bolts (B) then remove the ECM/PCM (C).
14. Install the ECM/PCM in the reverse order of removal.
15. Turn the ignition switch ON (II).
16. Manually input the VIN to 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.
17. If the READ DATA (engine oil life) failed in step 7 , go to step 20 (A/T) or step 23 (M/T). Otherwise, go to step 18.
18. Select the PGM-FI system with the HDS.
19. Select the REPLACE ECM/PCM MENU, then select WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
20. A/T: If the READ DATA (ATF life) failed in step 9 , go to step 23 . Otherwise go to step 21.
21. A/T: Select the A/T SYSTEM with the HDS.
22. A/T: Select the REPLACE TCM/PCM MENU, then select WRITE DATA and follow the screen prompts. NOTE: If the WRITE DATA indicates FAILED, continue with this procedure.
23. Select IMMOBI system with the HDS.
24. Enter the immobilizer code with the ECM/PCM replacement procedure in the HDS; it allows you to start the engine.
25. If the TP POSITION CHECK failed in step 6 clean the throttle body (see «THROTTLE BODY CLEANING»(ref-291400-S23924038352008072800000) ), then go to step 26.
26. If the READ DATA failed in step 7 or the WRITE DATA failed in step 19, replace the engine oil (see «ENGINE OIL REPLACEMENT»(ref-291390-S34076846442008072800000) ) and engine oil filter (see «ENGINE OIL FILTER REPLACEMENT»(ref-291390-S35505996992008072800000) ), then go to step 27 (A/T) or step 28 (M/T).
27. If the READ DATA failed in step 9 or the WRITE DATA failed in step 22 , replace the ATF (see «ATF REPLACEMENT»(ref-291388-S16795412632008072800000) ), then go to step 28.
28. Select PGM-FI system, and reset the ECM/PCM with the HDS.
29. Update the ECM/PCM if it does not have the latest software (see «UPDATING THE ECM/PCM»(ref-291410-S41633658632008072800000) ).
30. Do the ECM/PCM idle learn procedure (see «ECM/PCM IDLE LEARN PROCEDURE»(ref-291413-S23447131872008072800000) ).
31. Do the CKP pattern learn procedure (see «CRANK (CKP) PATTERN CLEAR/CRANK (CKP) PATTERN LEARN»(ref-291410-S23094343812008072800000) ).