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 MANUALSCHEVROLET1995CAMARO V6-204 3.4L VIN S SFIREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORTESTING AND INSPECTION
1995 Chevrolet Camaro V6-204 3.4L VIN S SFI
Throttle Position Sensor: Testing and Inspection
1995 Chevrolet Camaro V6-204 3.4L VIN S SFISECTION Testing and Inspection
A Tech 1 scan tool displays throttle position in volts. Voltage should increase at a steady rate as throttle is moved toward wide open throttle. The PCM has the ability to auto-zero the Throttle Position (TP) sensor voltage if it is between 0.29 volt (290 mV) and 0.98 volt (980 mV). This means that any voltage between 0.29 and 0.98 volt will be determined by the PCM to be 0% throttle. Tech 1 scan tools have the ability to read the throttle angle and should display 0% when the throttle is closed, A failure in the TP sensor or circuit should set a DTC 21 or 22.
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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.