Variable Induction System: Service and Repair

WARNING:
FUEL UNDER PRESSURE
Fuel in the fuel system remains under HIGH PRESSURE for long periods of time, even when the engine is not RUNNING. To avoid injury or fire, release the fuel pressure from the fuel system before disconnecting any fuel line.

REMOVAL
1. Relieve the fuel system pressure. Refer to Powertrain Management.





2. Use Disconnect Tool D87L-9280-B/A or equivalent and disconnect the fuel supply line from the fuel injection supply manifold.
3. Use disconnect tool and disconnect the fuel return line from the fuel injection supply manifold rail.





4. Disconnect the intake manifold runner control (IMRC) actuator electrical connector.
5. Remove the intake manifold.
6. Disconnect the four fuel injector electrical connectors.





7. Remove the IMRC.
8. Remove the two bolts and remove the fuel injection supply manifold, if necessary. Refer to Powertrain Management.





9. Remove the three bolts and remove the IMRC actuator and the fuel injection supply manifold bracket, if necessary.

INSTALLATION
1. Install the fuel injection supply manifold bracket and the IMRC actuator. Tighten bolts to 8-11.5 Nm (71-101 inch lbs.).
2. Install the fuel injection supply manifold, if necessary.
3. Install the IMRC.
4. Connect the four fuel injector electrical connectors.
5. Install the intake manifold.
6. Connect the IMRC actuator electrical connector.

WARNING: DO NOT SMOKE OR CARRY LIGHTED TOBACCO OR OPEN FLAME OF ANY TYPE WHEN WORKING ON OR NEAR ANY FUEL RELATED COMPONENTS. HIGHLY FLAMMABLE MIXTURES ARE ALWAYS PRESENT AND MAY BE IGNITED, RESULTING IN POSSIBLE PERSONAL INJURY.

7. Connect the fuel supply line to the fuel injection supply manifold.
8. Connect the fuel return line to the fuel injection supply manifold.