68318470AA

1. [
2. {
3. "step": 1,
4. "title": "Relieve Fuel System Residual Pressure",
5. "instruction": "Depressurize high pressure fuel system using diagnostic scan tool or fuel pump relay isolation. Disconnect battery negative terminal."
6. },
7. {
8. "step": 2,
9. "title": "Disconnect Wiring Harness & Fuel Rail Hard Lines",
10. "instruction": "Unclip wiring harness from all four injectors. Loosen the high pressure fuel crossover pipe (27 N·m) and unbolt fuel rail fasteners (12 N·m)."
11. },
12. {
13. "step": 3,
14. "title": "Extract Injectors & Fit New Teflon Chamber Seals",
15. "instruction": "Use slide hammer tool to extract direct injectors from cylinder head. Install new blue Teflon seals using calibration guide sleeves."
16. },
17. {
18. "step": 4,
19. "title": "Torque Rail Fasteners & Verify High Pressure Seal",
20. "instruction": "Seat injectors into cylinder ports. Torque rail bolts to 12 N·m. Tighten steel high pressure line to 27 N·m. Prime fuel system and check for leaks."
21. }
22. ]

Bezne diagnosticke chybove kody (DTC), ktere se spousteji pri opotrebeni, zavade obvodu nebo odchylce kalibrace tohoto vstrikovace common rail: