Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
9. Position the engine wire harness.
10. Connect the following electrical connectors to the left side of the engine:
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Main coil (2)
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Fuel injectors
11. Install the harness clips to the fuel rail (1).
12. Install the CPA retainer.
13. Connect the following electrical connectors to the right side of the engine:
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Main coil (4)
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Fuel injectors (3)
14. Install the CPA retainer (5).
15. Install the harness clips to the fuel rail (1).
16. Connect the ETC electrical connector (2), preform the following:
0. Connect the connector.
1. Engage the gray retainer.
17. Connect the following electrical connectors:
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MAP sensor (1)
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Knock sensor (2)
18. Install the knock sensor harness connector to the intake manifold.