Harness - Engine - V8

86.70.17 Harness - Engine - V8

Before disconnecting the battery, ensure all text and cautions in the battery disconnection section are observed.

Remove
1. Position vehicle on lift.
2. Disconnect battery earth lead.
3. Remove air intake hose.
4. Remove LH ignition coil cover.
5. Remove RH ignition coil cover.





6. Remove 10 Allen screws securing 'E' box cover and remove cover.





7. Disconnect 5 multiplugs from engine ECM.





8. Disconnect 3 multiplugs from gearbox ECU.





9. Disconnect engine harness multiplug and 3 relays from inside 'E' box





10. Disconnect engine harness multiplug from 'E' box.





11. Remove 2 nuts securing 2 engine harness earth leads.
12. Release 2 engine harness grommets from 'E' box.





13. Disconnect multiplugs from ignition coils.





14. Disconnect multiplugs from throttle body, thermostat heater, CMP sensor and ECT sensor.
15. Cut 2 cable ties and release engine harness.





16. Disconnect multiplugs from VCC solenoids.
17. Release VCC multiplug harness from clip.





18. Disconnect multiplug from charcoal canister purge solenoid valve.





19. Disconnect multiplug from alternator.
20. Release alternator harness from 4 clips.





21. Disconnect multiplugs from KS and CMP sensor.





22. Remove 2 nuts securing fuel injector harness to fuel rail.
23. Release vacuum reservoir and mounting bracket from LH fuel injector harness securing stud.
24. Remove fuel hose and mounting bracket from LH fuel injector harness securing stud.





25. Release alternator harness from 2 clips on engine cover mounting brackets.





26. Disconnect multiplugs from fuel injectors.





27. Release engine harness from clips and move clear of camshaft cover.





28. Disconnect multiplug from charcoal canister purge solenoid valve.





29. Remove 2 nuts securing engine harness to induction manifold
30. Remove secondary air vacuum switching valve from RH fuel injector harness securing stud.
31. Remove washer from fuel injector harness securing stud.





32. Disconnect multiplug from RH KS.





33. Disconnect multiplugs from fuel injectors.
34. Reposition injector harness.





35. Disconnect multiplug from inhibitor switch harness.
36. Release clips securing LH oxygen sensor lead from gearbox bell housing.





37. Disconnect multiplug from engine wiring harness.
38. Disconnect multiplug from CKP sensor.
39. Release CKP sensor lead from clip on RH side of gearbox.





40. Release pre-catalyst harness leads from clips, remove multiplugs from retaining clips and disconnect.
41. Release gearbox breather pipe from clip on top of gearbox.





42. Release post catalyst HO2S harnesses from clips, remove multiplugs from clips and disconnect.





43. Disconnect multiplug from gearbox housing.
44. Note engine harness route on engine and remove harness.

Refit
1. Position and correctly route engine harness to engine.
2. Connect multiplug to gearbox housing.
3. Connect multiplugs to post catalyst HO2S sensors and secure with clips.
4. Secure gearbox breather pipe to clip on top of gearbox.
5. Connect multiplugs to pre-catalyst HO2S sensors and secure with clips.
6. Secure CKP sensor lead to clip on RH side of gearbox.
7. Connect multiplug to CKP sensor.
8. Connect multiplug to engine wiring harness.
9. Fit and secure LH oxygen sensor lead to gearbox bell housing.
10. Fit and secure inhibitor switch harness and connect multiplug.
11. Reposition injector harness.
12. Connect fuel injector harness multiplugs.
13. Fit washer to fuel injector harness securing stud.
14. Fit secondary air vacuum switching valve to RH fuel injector securing stud.
15. Fit 2 nuts securing fuel injector harness to induction manifold and tighten.
16. Connect multiplug to charcoal canister purge solenoid valve.
17. Position and secure engine harness to brackets with clips.
18. Connect fuel injector harness multiplugs.
19. Connect alternator harness to 2 clips on engine cover mounting brackets.
20. Fit fuel hose and mounting bracket to LH fuel injector harness securing stud.
21. Fit vacuum reservoir and mounting bracket to LH fuel injector harness securing stud.
22. Fit 2 nuts securing fuel injector harness to induction manifold and tighten.
23. Connect multiplugs to knock sensors.
24. Connect multiplug to CMP sensor.
25. Connect alternator harness to 4 clips.
26. Connect multiplug to alternator.
27. Connect multiplug to charcoal canister purge solenoid valve.
28. Connect VCC multiplug harness to clip.
29. Connect multiplugs to valve body solenoids.
30. Fit new cable ties, align and secure harness.
31. Connect multiplug to CMP sensor.
32. Connect multiplug to throttle body.
33. Connect multiplug to alternator.
34. Connect multiplugs to ECT sensors.
35. Secure 2 engine harness grommets to 'E' box.
36. Position 2 engine harness earth leads, fit nuts and tighten.
37. Connect engine harness multiplug in 'E' box.
38. Secure 3 relays to brackets in 'E' box.
39. Connect engine harness multiplug in 'E' box.
40. Connect 3 multiplugs to gearbox ECU.
41. Connect 5 multiplugs to engine ECM.
42. Fit 'E' box cover and tighten 10 securing Allen screws.
43. Fit LH ignition coil cover.
44. Fit RH ignition coil cover.
45. Connect air intake hose.
46. Connect battery earth lead.