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.
1996 Geo Tracker Base, 4D Utility, RWDFACTORY OEM SERVICE PROCEDURE
Engine Controls - Sensor Operating Range Charts: Introduction
Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.
CAMSHAFT POSITION (CMP) SENSOR VOLTAGE (1)
| Application | PCM Connector/Terminal | Volts | ||||
|---|---|---|---|---|---|---|
| Tracker | B/3 & Ground | (2) Approx. 0-5 | ||||
|
||||||
CRANKSHAFT POSITION (CKP) SENSOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|---|
| Tracker | 485-655 |
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 0 (-18) | 14,650 |
| 20 (-7) | 8100 |
| 40 (4) | 4780 |
| 70 (21) | 2350 |
| 100 (38) | 1250 |
| 160 (71) | 400 |
| 210 (99) | 190 |
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 0 (-18) | 14,800 |
| 20 (-7) | 8250 |
| 40 (4) | 5200 |
| 70 (21) | 2500 |
| 100 (38) | 1300 |
| 160 (71) | 450 |
| 210 (99) | 200 |
CAUTION:
Damage to MAP sensor will occur if connections are made incorrectly.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.