HiSport
HiSport TH0006 19259452 - Throttle Position Sensor & Connector - Compatible with Buick Cadillac Chevrolet Express 1500 GMC Savana Envoy Yukon Cadillac Escalade Suburban #Replace 260067,TPS4270
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THE ERROR CODE:
- P0120: Throttle Position Sensor/Switch A Circuit Malfunction – the voltage goes higher or lower than normal, or stutters in comparison to the “B” sensor.
- P0121: Throttle Position Sensor/Switch A Circuit Range/Performance Problem – the throttle angle doesn’t match the value expected for a specific RPM.
- P0122: Throttle Position Sensor/Switch A Circuit Low Input.
- P0123: Throttle Position Sensor/Switch A Circuit High Input – the voltage exceeds normal values.
- P0124: Throttle Pedal Position Sensor/Switch (TPS) A Circuit Intermittent – the sensor sends a number of intermittent or erratic signals within a set period
Symptoms of a Faulty Throttle Position Sensor
- An unexplainable bucking and jerking in the vehicle
- Sudden idle surges
- Sudden engine stalling without any apparent reason
- Hesitation while accelerating
- Sudden surges in speed while driving on the highway
- Intermittently flashing of check engine light for no apparent reason
- Difficulties in changing gears
- A drastic drop in fuel economy
How to Test a Throttle Position Sensor
- Use a standard ohmmeter to test a switch and combination type throttle position sensor and a voltmeter to test a throttle position sensor that uses a potentiometer.
- Check the resistance in various accelerator pedal positions, record the resistance
- Compare against values listed as acceptable in a quality car repair manuals to determine whether or not the sensor needs to be replaced.
Is It Worth The Repair?
Some issues are worth fixing while others aren’t. In the case of a bad TPS if your car is relatively new with low miles then it has a long road ahead of it and maybe it is worth your while. Now if your vehicle has existing damages, high mileage, and now mechanical issues then it's best to sell that AS IS to avoid throwing away your hard-earned cash into that money pit.