16790-5R1-004

1. [
2. {
3. "step": 1,
4. "title": "Relieve Low Pressure Line Pressure",
5. "instruction": "Remove fuel pump fuse from under-dash fuse panel. Crank engine for 5 seconds until it stalls, ensuring pressure in line drops to zero."
6. },
7. {
8. "step": 2,
9. "title": "Clean Mounting Pocket & Camshaft Tappet",
10. "instruction": "Clean cylinder head pump well. Remove roller tappet, inspect for scoring, and lubricate thoroughly with molybdenum engine assembly grease."
11. },
12. {
13. "step": 3,
14. "title": "Position Camshaft at Low Base Circle",
15. "instruction": "Rotate engine crankshaft clockwise until the high pressure pump driving cam lobe is at its lowest position to ease installation."
16. },
17. {
18. "step": 4,
19. "title": "Tighten Flange Bolts Alternately",
20. "instruction": "Install pump with fresh engine oil applied to new O-ring. Tighten bolts alternately and evenly in two passes to final torque of 12 N\u00b7m."
21. },
22. {
23. "step": 5,
24. "title": "Torque High Pressure Line Flare Nut",
25. "instruction": "Connect high pressure line and hand-tighten flare nut. Secure with flare nut wrench to 28 N\u00b7m. Start engine and verify zero fuel seepage."
26. }
27. ]

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