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 MANUALSCHEVROLET1992CAVALIER RS, 2D CONVERTIBLE, 2.2 4, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)TRANSMISSIONAUTOMATIC TRANSDIAGNOSIS - A/TDIAGNOSTIC CODE CHARTS (TRUCKS)CODE 23, MAT SENSOR TEMP. LOW - 1991 2.5L & 4.3L TURBODIAGNOSTIC AIDS
1992 Chevrolet Cavalier RS, 2D Convertible, 2.2 4, Standard
Diagnostic Aids
1992 Chevrolet Cavalier RS, 2D Convertible, 2.2 4, StandardSECTION Diagnostic Aids
If the engine is allowed to cool overnight, the coolant and MAT sensors should read close to each other, when measured with a Scan tester. A Code 23 will also result if signal and ground circuits become open.
TEMPERATURE-TO-RESISTANCE VALUES
| °F (°C) (1) | (2) Ohms | ||||
|---|---|---|---|---|---|
| 210 (100) | 185 | ||||
| 160 (70) | 450 | ||||
| 100 (38) | 1,800 | ||||
| 70 (20) | 3,400 | ||||
| 40 (4) | 7,500 | ||||
| 20 (-7) | 13,500 | ||||
| 0 (-18) | 25,000 | ||||
| -40 (-40) | 100,700 | ||||
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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.