Engine Controls - Sensor Operating Range Charts 1.3L: 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 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.
ENGINE COOLANT TEMPERATURE (ECT) SENSOR VOLTAGE
| Temperature °F (°C) |
Voltage |
| -4 (-20) |
4.7 |
| 32 (0) |
3.4 |
| 68 (20) |
2.5 |
| 104 (40) |
2.0 |
| 176 (80) |
0.7 |
| 212 (100) |
0.2 |
EGR BOOST (EGRB) SENSOR
| Vacuum (In. Hg) |
Volts |
| 4.4 |
0.3 |
| 11.8 |
1.5 |
| 28.1 |
4.3 |
| 31.0 |
4.8 |
INTAKE AIR TEMPERATURE (IAT) SENSOR VOLTAGE
| Temperature °F (°C) |
Voltage |
| -4 (-20) |
4.7 |
| 32 (0) |
3.4 |
| 68 (20) |
2.5 |
| 104 (40) |
2.0 |
| 140 (60) |
1.2 |
| 176 (80) |
0.7 |
OXYGEN SENSOR (O2S) VOLTAGE
| Engine Condition |
Voltage |
| KOEO |
Less Than 1.0 |
| Idle |
Less Than 1.0 |
| Deceleration |
0-0.4 |
| Acceleration |
0.5-1.0 |
HEATED OXYGEN SENSOR (HO2S) VOLTAGE
| Engine Condition |
Voltage |
| KOEO |
Less Than 1.0 |
| Idle |
Less Than 1.0 |
| Deceleration |
0-1.0 |
| Acceleration |
0-1.0 |
MASS AIRFLOW (MAF) SENSOR
| Engine Condition |
Volts |
| KOEO |
1-1.5 |
| Hot Idle |
2.0 |
| 30 MPH |
2.6 |
| 55 MPH |
2.8 |
THROTTLE POSITION (TP) SENSOR OUTPUT VOLTAGE
| Throttle Position |
Voltage |
| 0 |
0.5 |
| 1/4 |
1.3 |
| 1/2 |
2.2 |
| 3/4 |
2.9 |
| Full |
3.7 |