LS 400 V8-4.0L (1UZ-FE) (1990)
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Throttle Body: Service and Repair
Installation
PCV And No.5 Water Bypass Lines
Install Throttle Body
- Install water bypass hoses.
- Install PCV hoses.
PCV And No.1 Water Bypass Lines
- Install a new gasket to the air intake chamber.
- Connect PCV hose to cylinder head cover.
- Connect No. 1 water bypass hose.
Throttle Body Fasteners
- Install throttle body to air intake chamber.
Torque value - 13 ft.lb (18 Nm)
Throttle Body Hoses
- Connect throttle position sensor.
- Connect sub-throttle position sensor and throttle actuator, if equipped with traction control.
- Install water bypass to ISC.
- Install upper ignition wire cover.
