Without Governor Control
TBI Mounting:
REMOVAL
- Remove air cleaner assembly and discard gasket.
- Disconnect electrical connectors from idle air control valve (IAC), throttle position sensor (TPS), and fuel injectors (squeeze plastic tabs on injector connector and pull straight up).
- Remove grommet with injector wires and lay aside.
- Disconnect throttle linkage, return spring(s), transmission control cable, and cruise control (wherever applicable).
- Disconnect vacuum hoses, noting position of hoses.
- Disconnect inlet and outlet fuel lines.
NOTE: Relieve fuel pressure before disconnecting fuel lines and use a back-up wrench on inlet and outlet nuts.
- Remove fuel line O-rings from fuel nuts and discard.
- Remove TBI unit mounting hardware.
- Remove TBI unit.
NOTE: To prevent damage to the throttle valve, it is essential that the unit be placed on a holding fixture, before performing service.
- Remove TBI flange (manifold mounting) gasket.
NOTE: Before removing old gasket from surface of intake manifold, stuff the manifold opening with a clean rag to prevent material from entering the engine.
INSPECT
- Manifold bore for loose parts and foreign material.
- Intake manifold sealing surface for cleanliness.
INSTALLATION
- Install new TBI flange (manifold mounting) gasket.
- Install TBI unit with mounting hardware. Tighten to 16.0 Nm (12.0 lb.ft.)
- Install new O-rings on fuel line nuts and coat with new engine oil. Use a back-up wrench and tighten to 26.0 Nm (20.0 lb.ft.).
- Connect vacuum hoses.
- Connect throttle linkage, return spring(s), transmission control cable, and cruise control (wherever applicable).
- Install grommet, with injector harness, to throttle body.
- Connect electrical connectors. Ensure connectors are fully seated and latched.
- Check to see if accelerator pedal is free, by depressing pedal to the floor and releasing, while engine is "OFF".
- Check for fuel leaks around fuel line nuts. Apply fuel pressure by turning ignition "ON" with engine "OFF".
- Install air cleaner assembly with new gasket.
NOTE: Ensure injectors wires are not pinched between TBI and air cleaner assembly.
- Start engine check again for fuel leaks.