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 MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.7 R, L31/KL8REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 102 (ENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONS)FUEL SYSTEMSTHROTTLE POSITION SENSOR

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8

Throttle Position Sensor

2001 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.7 R, L31/KL8SECTION Throttle Position Sensor

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: TP sensor is not adjustable. For further testing procedures, perform TP sensor related diagnostic test. See appropriate SELF-DIAGNOSTICS article.

THROTTLE POSITION SENSOR VOLTAGE

Application

Volts

2.2L

⁽¹⁾

3.0L

⁽²⁾

⁽¹⁾	TP sensor is 2 individual units within one housing. TP sensor 1 signal voltage range is 4.25 volts with throttle closed to 0.59 volt at wide open throttle. TP sensor 2 signal voltage range is from 0.75 volt with throttle closed to 4.41 volts at wide open throttle.

⁽²⁾	TP sensor is 2 individual units within one housing. TP sensor 1 signal voltage range is 0.50 volt with throttle closed to 4.25 volts at wide open throttle. TP sensor 2 signal voltage range is from 4.45 volts with throttle closed to 0.70 volt at wide open throttle.

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.