Sierra 1500 4WD V8-5.3L VIN Z Flex Fuel (2005)
9. Perform the following steps in order to connect the fuel injector electrical connectors.
1. Install the connectors to their corresponding injectors to ensure correct reassembly.
2. Connect the fuel injector electrical connector.
3. Push the CPA retainer (2) in the connector in 1 click.
4. Repeat the steps for each injector electrical connector.
10. Position the engine wire harness.
11. Connect the following electrical connectors to both sides of the engine:
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Main coil (2)
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Fuel injectors
12. Install the harness clips to the fuel rail (1).
13. Install the CPA retainers.
14. Connect the following electrical connectors:
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MAP sensor (1)
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Knock sensor (2)
15. Install the knock sensor harness connector to the intake manifold.
