How do you test a GM throttle position sensor?
How to Check the TPS Voltage on a Chevy Truck
- Open the hood on the truck. Remove the engine’s air cleaner by removing the wingnuts.
- Place the black probe from the voltmeter on the middle terminal inside the TPS. Place the voltmeter’s red probe on the the top, rearward terminal of the TPS.
- Put the key in the ignition.
How do you test a throttle position sensor with a scanner tool?
Use live data graphing if your scanner supports it. Slowly push the accelerator pedal as you observe the live data. The graph should be a straight line with a positive slope. If it (the line) changes abruptly as you press the pedal, that means the TPS is faulty.
How to test the throttle position sensor ( TPS )?
How To Test The 4.6L, 5.4L Ford Throttle Position Sensor (TPS) (at: easyautodiagnostics.com ). The following article has a simplified wiring-diagram that may also be of help: TP Sensor Wiring Diagram (1997-1999 Ford 4.6L, 5.4L).
What are the DTC codes for the throttle position sensor?
TPS diagnostic trouble codes (DTC’s) stored in the vehicle’s computer’s memory. P0121: Throttle Position Sensor Performance. P0122: Throttle Position Sensor Circuit Low Voltage. P0123: Throttle Position Sensor Circuit High Voltage. Really bad gas mileage. Transmission does not shift out of second gear.
Can a faulty throttle position sensor cause poor fuel economy?
Video tutorial on how to test/troubleshoot and setup the throttle position sensor on a BMW. A faulty throttle position sensor in known to cause poor fuel economy, loss of power, erratic idling, high idle, and increased emissions. This does apply to the older model/style throttle position sensors, the newer models use a potentiometer.
How to test the 4.6L, 5.4L Ford throttle position sensor?
OK, one last thing before we jump into the article, you can find a complete list of 4.6L and 5.4L ‘How To Test’ articles that are located in this Web Site and at troubleshootmyvehicle.com and this list is found here: Ford 4.6L, 5.4L Index Of Articles.