K 1500 Truck 4WD V8-4.8L VIN V (2003)
6. Install the fuel pressure regulator vacuum hose.
7. Connect the fuel feed and return pipes (1) to the fuel rail.
8. Install the PCV hose.
9. Perform the following steps in order to connect the fuel injector electrical connectors.
9.1.
Install the connectors to their corresponding injectors to ensure correct reassembly.
9.2.
Connect the fuel injector electrical connector.
9.3.
Push the CPA retainer (2) on the connector in 1 click.
9.4.
Repeat the steps for each injector electrical connector.