How to test the throttle position sensor ( 1986-1991 )?
How to test the throttle position sensor ( 1986-1991 )? For this test, go to: How To Adjust the TPS. CASE 2: The throttle angle voltage DID NOT increase (and/or decrease) as you opened and closed the throttle plate. This test result confirms that the TPS is behind the TPS trouble code lighting up the check engine light (CEL) on your 2.8L Chevrolet S10. Where is the TPS sensor on a Chevy truck? Locate the TPS sensor on the passenger side of the throttle body. Unplug the harness connected to the TPS sensor. Place the black probe from the voltmeter...