K 2500 Truck 4WD V8-8.1L VIN G (2001)
7. Connect the fuel feed and return pipes (1,2) to the fuel rail.
8. Connect the injector electrical connectors (4).
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Install each connector on the proper injector in order to ensure correct sequential injector firing order.
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Rotate the injectors as required in order to avoid stretching the wire harness.
9. Install the Secondary Air Injection (AIR) crossover pipe if applicable.
10. Install the upper engine wire harness bracket.
11. Install the retainer studs to the upper engine wire harness.
Tighten
Tighten the nut to 10 N.m (89 lb in)