OEM 2002 Toyota Land Cruiser Throttle Body

2002 Toyota Land Cruiser Throttle Body Parts Q&A

• Q: How to service and repair the throttle body on 2002 Toyota Land Cruiser?

  A: A formal service or repair of the throttle body starts with removing the V-bank cover while draining engine coolant and then removing the intake air connector. Service and repair operations on the throttle body start with disconnecting the accelerator cable before removing the throttle body through disconnecting the throttle position sensor connector and throttle control motor connector and accelerator pedal position sensor connector as well as unplugging the accelerator pedal position sensor wire from its clamps. To detach the throttle body from the intake manifold professionals need to disconnect the PCV hose and water bypass hose and remove the ventilation cap and unfasten its 2 bolts and 2 nuts. Install the new throttle body by starting with connecting the water bypass hose to the manifold thermostat followed by adding a new gasket then secure it with the 2 bolts and 2 nuts at 18 N.m (185 kgf.cm, 13 ft.lbf). Install the ventilation cap followed by attachment of the water bypass hose and PCV hose then restore the connections for throttle position sensor and throttle control motor and accelerator pedal position sensor together with the accelerator pedal position sensor wire to its clamps. The next step involves hooking the accelerator cable to the throttle body followed by reinstallation of the intake air connector then adding engine coolant before starting the engine to detect leaks before reinstalling the V-bank cover. Inspection of replacement duties should include checking the throttle position sensor and accelerator pedal position sensor for electrical shock then searching for foreign materials that may trigger gear locking. To install the throttle position sensor start by disconnecting its connector then eliminate the set screws and carefully position the new sensor at an opening angle of 5.5 degrees while aligning it 15 degrees to the right before screw tightening. The sensor adjustment requires use of a toyota hand-held tester or obd II scan tool yet is complete only when the throttle valve opening measures between 14.4 - 16% after confirmation. Before you begin the throttle control motor replacement task remove the throttle position sensor followed by disconnecting the throttle control motor connector while you unfasten the 6 screws to take off the motor cover and assembly. The equipment includes installing the new motor with its cover as well as the wave washer after you coat the gear teeth with grease then reattach the throttle control motor connector. You must remove the accelerator pedal position sensor before installation of a new one while positioning the throttle valve at around 4% opening angle before validating the accel pos #1 (VPA) voltage with the tester for measurements from 0.35 - 0.85 V. Testing the system operation should be performed after completion of the throttle body installation.