Throttle Position Sensor: Adjustments

(1) Connect the MUT-II to the diagnosis tester. If the MUT-II is not used, carry out the following.





a. Disconnect the throttle position sensor connector.





b. Using jumper wires, connect an ohmmeter across terminal (3) (closed throttle position switch) and terminal (4) (sensor ground) of the throttle position sensor.





(2) Insert a 0.65 mm (0.025 in.) thick feeler gauge between the fixed SAS and throttle lever.
(3) If the MUT-I is used, turn the ignition switch to ON position. (Do not start the engine.)





(4) Loosen the throttle position sensor mounting bolts and turn the throttle position sensor body fully counterclockwise.
(5) In this condition, check that the idle switch is ON (continuity exists between terminals (3) and (4)).





(6) Slowly turn the throttle position sensor clockwise until the idle switch is turned OFF (continuity between terminals (3) and (4) disappears). Then, tighten the throttle position sensor mounting bolt securely.





(7) If not using the scan tool, proceed as follows:
a. Disconnect the throttle position sensor connectors and connect the special tool, Test Harness Set, between the disconnected connectors.
b. Connect a digital voltmeter between the throttle position sensor terminal (2). (sensor output) and terminal (4) (sensor ground).
c. Turn the ignition switch ON (but do not start the engine).
(8) Check the throttle position sensor output voltage.

Standard value: 400 - 1,000 mV

(9) If the voltage is out of specification, check the throttle position sensor and associated harnesses.
(10) Remove the feeler gauge.
(11) Turn the ignition switch OFF.