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 MANUALSPONTIAC1991FIREBIRD V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSTHROTTLE POSITION SENSOR
1991 Pontiac Firebird V8-350 5.7L
Throttle Position Sensor
1991 Pontiac Firebird V8-350 5.7LSECTION Throttle Position Sensor
Sensot Voltage Values
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| Voltage Note: The Throttle position Sensor is not adjustable on this engine | At Idle | 0.5 |
| At Closed Throttle | 0.36 to 0.62 | |
| At Wide Open Throttle | 4.8 |
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.