Engine Controls - Sensor Operating Range Charts: Introduction: Notes
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.
NOTE:
Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. For connector and terminal identification, see WIRING DIAGRAMS
article in the ENGINE PERFORMANCE Secton.
AIRFLOW METER HERTZ TEST (1)
| Condition | Hz | |||
|---|---|---|---|---|
| 3.0L | ||||
| 700 RPM | 22-48 | |||
| 2000 RPM | 60-100 | |||
| 3.5L | ||||
| 700 RPM | 27-53 | |||
| 2000 RPM | 60-100 | |||
|
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COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 32 (0) | 5800 |
| 68 (20) | 2400 |
| 104 (40) | 1100 |
| 176 (80) | 300 |
INTAKE AIR TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 32 (0) | 6000 |
| 68 (20) | 2700 |
| 176 (80) | 400 |
OXYGEN SENSOR VOLTAGE TEST (1)
| Application | Volts | ||
|---|---|---|---|
| Lean | 0.1 | ||
| Rich | 1.0 | ||
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