23209-31090

1. [
2. {
3. "step": 1,
4. "title": "EFI Fuel System Pressure Relief",
5. "instruction": "Remove the 15A EFI fuse from the engine compartment junction block. Crank engine for 5 seconds to depressurize fuel rails, then disconnect negative battery terminal."
6. },
7. {
8. "step": 2,
9. "title": "Upper Intake Plenum & Throttle Body Removal",
10. "instruction": "Unbolt upper aluminum intake surge tank plenum, rear stay brackets, PCV lines, and throttle body. Remove plenum to expose fuel delivery rails on both cylinder banks."
11. },
12. {
13. "step": 3,
14. "title": "Fuel Delivery Pipe Mounting Bolts Removal",
15. "instruction": "Disconnect electrical wiring harness connectors from all six fuel injectors. Remove the 12mm bolts securing Bank 1 and Bank 2 fuel delivery pipes to the lower intake manifold."
16. },
17. {
18. "step": 4,
19. "title": "Injector Extraction & Intake Manifold Grommet Replacement",
20. "instruction": "Carefully draw fuel rails backwards and remove injectors from rail pockets. Extract hardened lower rubber insulator grommets from intake manifold injector counterbores."
21. },
22. {
23. "step": 5,
24. "title": "New O-Ring Lubrication, Reassembly & Specified Torquing",
25. "instruction": "Lubricate new upper Viton O-rings with clean engine oil. Push injectors into delivery pipe with a smooth twisting motion. Torque fuel delivery pipe bolts to 21 N\u00b7m (15 lb-ft) and reinstall intake plenum."
26. }
27. ]

Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift: