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 MANUALSCHEVROLET1998TRACKER 2D UTILITY, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROLS - SENSOR RANGE CHARTSINTRODUCTION
1998 Chevrolet Tracker 2D Utility, RWD, Automatic
Engine Controls - Sensor Range Charts: Introduction
1998 Chevrolet Tracker 2D Utility, RWD, AutomaticSECTION 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 will cause driveability problems.
NOTE:
Perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in testing procedures.
| °F (°C) | Ohms | ||||||
|---|---|---|---|---|---|---|---|
| 266 (130) | 70 | ||||||
| 212 (100) | 177 | ||||||
| 194 (90) | 241 | ||||||
| 176 (80) | 332 | ||||||
| 158 (70) | 467 | ||||||
| 140 (60) | 667 | ||||||
| 122 (50) | 973 | ||||||
| 113 (45) | 1188 | ||||||
| 104 (40) | 1459 | ||||||
| 95 (35) | 1802 | ||||||
| 86 (30) | 2238 | ||||||
| 77 (25) | 2796 | ||||||
| 68 (20) | 3520 | ||||||
| 59 (15) | 4450 | ||||||
| 50 (10) | 5670 | ||||||
| 41 (5) | 7280 | ||||||
| 32 (0) | 9420 | ||||||
| 23 (- 5) | 12,300 | ||||||
| 14 (- 10) | 16,180 | ||||||
| 5 (- 15) | 21,450 | ||||||
| - 4 (- 20) | 28,680 | ||||||
| - 22 (- 30) | 52,700 | ||||||
| - 40 (- 40) | 100,700 | ||||||
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MAP SENSOR VOLTAGE RANGE (1)
| Throttle Position | Volts | ||
|---|---|---|---|
| At Idle | 1.0-1.5 | ||
| Wide Open Throttle | 4.0-4.6 | ||
|
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OXYGEN SENSOR VOLTAGE TEST (1)
| Condition | Volts | ||
|---|---|---|---|
| Lean | .1 | ||
| Rich | .9 | ||
|
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THROTTLE POSITION (TP) SENSOR VOLTAGE RANGE (1)
| Throttle Position | Volts | ||
|---|---|---|---|
| At Idle | .6 | ||
| Wide Open Throttle | 4.8 | ||
|
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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.