Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1981CITATION 4D HATCHBACK, 2.5L ENG VIN 5, STANDARD TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSCOMPUTER COMMAND CONTROLOPERATIONDATA SENSORSTHROTTLE POSITION SENSOR (TPS)
1981 Chevrolet Citation 4D Hatchback, 2.5L Eng VIN 5, Standard Trans
Throttle Position Sensor (TPS)
1981 Chevrolet Citation 4D Hatchback, 2.5L Eng VIN 5, Standard TransSECTION Throttle Position Sensor (TPS)
This sensor is mounted inside carburetor and is operated by accelerator pump lever. The sensor, a variable resistor similar to fuel tank sending unit, signals ECM of change in throttle blade position from closed to wide open throttle.
NOTE:
The throttle position sensor is not used on 2.5L engines.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.