Important: An 8-digit part identification number is on a mylar label affixed to the fuel meter body. Refer to this number if servicing or part replacement is required.

1. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement .
2. Remove and discard the fuel meter body seal.

Notice: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). This solvent may damage fuel system components.

3. Before removal, clean the fuel meter body with a spray type engine cleaner, such as GM X-30A, or equivalent, if necessary. Follow the package instructions. Do not soak the fuel meter body in liquid cleaning solvent.

Notice: Cover the injector sockets in order to prevent dirt and other contaminants from entering the open fuel passages.

Important: When disconnecting the injectors, remember the sequence in order to ensure correct injector placement to each cylinder.

4. Remove the injectors from the lower intake manifold bores.

Lightly pull on the injector tube and using a small pocket screwdriver, remove the injector from the manifold.

5. Remove the MFI (multi-port flexible injection) fuel meter body from the MFI bracket

Important: The number 3 fuel tube must be positioned behind the number 1 fuel tube to eliminate interference with the upper intake manifold when installed.

1. Position the fuel tubes of the MFI fuel meter body in the forward position.
2. Install the MFI fuel meter body into the fuel meter body bracket on the lower intake manifold.

Push down firmly to lock the fuel meter body into the fuel meter body bracket.

3. Insert the injectors in the following sequence into the correct injector bore in the lower manifold.

3.1.

Number 3

3.2.

Number 5

3.3.

Number 1

3.4.

Number 2

3.5.

Number 4

3.6.

Number 6

4. Insure the electrical connectors on the injectors are positioned so that they do not interfere with each other and are pointing towards the center of the intake manifold.

Rotate the electrical connectors inboard if necessary.

Important: Lack of lubrication will make installation of the upper intake manifold difficult and may cause damage to the O-ring.

5. Lubricate the upper intake manifold O-ring on the fuel meter body with clean engine oil.
6. Install the upper intake manifold. Refer to Upper Intake Manifold Replacement .
7. Tighten the fuel fill cap.
8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
9. Test for fuel leaks using the following procedure:

9.1.	Turn the ignition ON, with the engine OFF, for 2 seconds.

9.2.	Turn the ignition OFF for 10 seconds.

9.3.	Turn the ignition ON, with the engine OFF.

9.4.	Inspect for fuel leaks.