Checking And Adjusting The Throttle Position Sensor

NOTE:

Before adjusting the throttle position sensor, the engine idling speed should be properly adjusted.

1. Check: • throttle position sensor

a. Disconnect the throttle position sensor coupler.

b. Remove the throttle position sensor from the throttle body.

c. Connect the pocket tester (Q x 1k) to the throttle position sensor.

Positive tester probe ^ blue terminal ® Negative tester probe ^ black/blue terminal (2)

d. Measure the maximum throttle position sensor resistance.

Out of specification ^ Replace the throttle position sensor.

Maximum throttle position sensor resistance

e. Connect the pocket tester (Q x 1k) to the throttle position sensor.

Positive tester probe ^ yellow terminal < Negative tester probe ^ black/blue terminal (2)

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f. While slowly opening the throttle, check that the throttle position sensor resistance is within the specified range. The resistance does not change or it changes abruptly ^ Replace the throttle position sensor.

The slot is worn or broken ^ Replace the throttle position sensor.

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