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.
Note. Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
| Terminals (1) | Temperature | Ohms |
|---|
| E2 & Vs |
| Closed | 68°F (20°C) | 20-600 |
| Open | 68°F (20°C) | 20-1000 |
| E2 & Vc (2) | 68°F (20°C) | 200-400 |
| E2 & THA (3) | 4°F (-20°C) | 10,000-20,000 |
| 68°F (20°C) | 2000-3000 |
| 140°F (60°C) | 400-700 |
| (1) See appropriate I - SYS/COMP TESTS article in the ENGINE PERFORMANCE section for terminal identification. (2) Measurement is from closed to open. (3) Intake air thermosensor. |
| (1) | See appropriate I - SYS/COMP TESTS article in the ENGINE PERFORMANCE section for terminal identification. |
| (2) | Measurement is from closed to open. |
| (3) | Intake air thermosensor. |
AIRFLOW MTR TERM RESISTANCE
| Temperature | Ohms |
|---|
| 68°F (20°C) | 25-35 |
| 176°F (80°C) | 64-76 |
COLD START THERMOSWITCH RESISTANCE
| Temperature | Ohms |
|---|
| 4°F (-20°C) | 14,600-17,800 |
| 68°F (20°C) | 2200-2700 |
| 176°F (80°C) | 280-350 |
| Terminals | Ohms |
|---|
| "A" & "B" | 700-5000 |
| "A" & "C" | 700-5000 |
| "B" & "C" | 5000 |
EGR POSITION SENSOR RESISTANCE
| Application | Ohms |
|---|
| 77°F (25°C) | 29,700-36,300 |
| 185°F (85°C) | 3300-3700 |
INTAKE AIR THERMOSENSOR RESISTANCE
| Operating Condition | Voltage |
|---|
| Rapidly Accelerating | 0.5-1.0 |
| Deceleration | 0.0-0.4 |
| Application | Ohms |
|---|
| Between Terminals "A" & "D" | 3000-6000 |
| Between Terminals "B" & "D" |
| Closed Throttle | 200-600 |
| Wide Open Throttle | 3300-7000 |
