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.
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.
| Temperature - °F (°C) | Ohms | |
|---|---|---|
| 68 (20) | ||
| Motronic System | 770-950 | |
| Trionic System | 485-595 | |
| Temperature - °F (°C) | Ohms | |||
|---|---|---|---|---|
| Motronic System | ||||
| -22 (-30) | 20,000-30,000 | |||
| 68 (20) | 8300-10,600 | |||
| 104 (40) | 2300-2700 | |||
| 140 (60) | 565-670 | |||
| 176 (80) | 295-365 | |||
| 194 (90) | 200-240 | |||
| 230 (110) | 140-160 | |||
| Trionic System | ||||
| -22 (-30) | 20,000-30,000 | |||
| -14 (-10) | 7000-11,400 | |||
| 68 (20) | 2100-2900 | |||
| 104 (40) | 1000-1300 | |||
| 140 (60) | 565-670 | |||
| 176 (80) | 295-365 | |||
| 194 (90) | 240-260 | |||
| 230 (110) | 140-160 | |||
|
||||
| Temperature - °F (°C) | Ohms | |||
|---|---|---|---|---|
| Motronic 5.2 System | ||||
| -22 (-30) | 20,000-30,000 | |||
| 14 (-10) | 8300-10,600 | |||
| 68 (20) | 2300-2700 | |||
| 104 (40) | 1000-1300 | |||
| 140 (60) | 565-670 | |||
| 176 (80) | 295-365 | |||
| 194 (90) | 240-260 | |||
| Trionic System | ||||
| -22 (-30) | 20,000-30,000 | |||
| 14 (-10) | 7000-11,400 | |||
| 68 (20) | 2100-2900 | |||
| 104 (40) | 1000-1300 | |||
| 140 (60) | 565-670 | |||
| 176 (80) | 295-365 | |||
| 194 (90) | 240-260 | |||
|
||||
| Pressure - kPa | Volts | ||
|---|---|---|---|
| .25 | .48 | ||
| 50 | .95 | ||
| 100 | 1.9 | ||
| 125 | 2.4 | ||
| 150 | 2.8 | ||
| 175 | 3.3 | ||
|
|||
| Condition | Volts |
|---|---|
| Lean | 0-0.4 |
| Rich | 0.6-1.0 |
Use the Manual With the Right Hardware
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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.
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