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 MANUALSCHEVROLET1993FORWARD CONTROL 7.4 NREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROLS - ADJUSTMENTSTHROTTLE POSITION (TP) SENSORNOTES
1993 Chevrolet Forward Control 7.4 N
Throttle Position (TP) Sensor: Notes
1993 Chevrolet Forward Control 7.4 NSECTION Notes
NOTE:
TP sensor is adjustable on diesel engines only. Resistance values given in TP SENSOR OUTPUT VOLTAGE (GASOLINE) table are for reference only. If resistance value is not as specified, replace TP sensor. For testing procedures, refer to appropriate TESTS W/CODES or SYSTEM & COMPONENT TESTING article.
TP SENSOR OUTPUT VOLTAGE (GASOLINE)
| Application | (1) Volts | ||
|---|---|---|---|
| 2.5L (VIN A) | 1.25 or Less | ||
| 2.8L (VIN R) | .42-.45 | ||
| 3.1L (VIN D) | 1.25 Or Less | ||
| 4.3L (VIN W & Z) | 1.25 Or Less | ||
| 5.0L (VIN H) | 1.25 Or Less | ||
| 5.7L (VIN K) | 1.25 Or Less | ||
| 5.7L CNG (VIN K) | 1.25 Or Less | ||
| 7.4L (VIN N) | 1.25 Or Less | ||
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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.