Throttle Position Sensor: Testing and Inspection

Throttle Position Sensor:

1. Disconnect throttle sensor connector.
2. Using an ohm meter, check resistance across terminals A and B.
Resistance value should change smoothly, without any glitches, from approximately .5 to approximately 4 ohms as the throttle is moved from idle to Wide Open Throttle (WOT).
Replace sensor if it fails the above test.