Tools Required

J 34730-1A Fuel Pressure Gauge

1. Clean the area around the fuel pressure connection with GM X-30A or equivalent.

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

2. Disconnect the negative battery cable.
3. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
4. Remove the fuel pressure connection valve using a standard valve core removal and installation tool.

1. Install the fuel pressure connection valve assembly using a standard valve core removal and installation tool.
2. Tighten the fuel filler cap.
3. Connect the negative battery cable.
4. Inspect for leaks.

4.1.	Turn ON the ignition for 2 seconds.

4.2.	Turn OFF the ignition for 10 seconds.

4.3.	Turn ON the ignition.

4.4.	Check for fuel leaks.

5. Install the fuel pressure connection valve cap.
6. Perform the Idle Learn Procedure. Refer to Idle Learn .