Engine Controls - Sensor 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 may cause driveability problems.
NOTE:
Unless stated otherwise in test procedure, perform all voltage tests with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (MODELS WITH ELECTRONIC THROTTLE CONTROL - EXCEPT 6.6L)
| Throttle Position |
Volts |
| At Idle |
| APP Sensor No. 1 |
Less Than 1.0 |
| APP Sensor No. 2 |
Greater Than 4.0 |
| APP Sensor No. 3 |
Greater Than 3.8 |
| Wide Open Throttle |
| APP Sensor No. 1 |
Greater Than 2.0 |
| APP Sensor No. 2 |
Less Than 2.9 |
| APP Sensor No. 3 |
Less Than 3.1 |
ACCELERATOR PEDAL POSITION SENSOR VOLTAGE (MODELS WITH ELECTRONIC THROTTLE CONTROL - 6.6L)
| Throttle Position |
Volts |
| At Idle |
| APP Sensor No. 1 |
.52-.80 |
| APP Sensor No. 2 |
4.25-4.53 |
| APP Sensor No. 3 |
3.95-4.13 |
| Wide Open Throttle |
| APP Sensor No. 1 |
2.12-2.65 |
| APP Sensor No. 2 |
2.40-2.93 |
| APP Sensor No. 3 |
2.76-3.16 |
SENSOR TEMPERATURE VS RESISTANCE (EXCEPT TRACKER)
| Temperature - °F (°C) |
Ohms |
| 302 (150) |
47 |
| 284 (140) |
60 |
| 266 (130) |
77 |
| 248 (120) |
100 |
| 230 (110) |
132 |
| 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 |
SENSOR TEMPERATURE VS RESISTANCE (TRACKER)
| Temperature - °F (°C) |
Ohms |
| 176 (80) |
315 |
| 158 (70) |
435 |
| 140 (60) |
580 |
| 122 (50) |
810 |
| 113 (45) |
940 |
| 104 (40) |
1150 |
| 95 (35) |
1360 |
| 86 (30) |
1600 |
| 77 (25) |
2000 |
| 68 (20) |
2400 |
| 59 (15) |
3000 |
| 50 (10) |
3600 |
| 41 (5) |
4600 |
| 32 (0) |
5700 |
| 23 (-5) |
7400 |
| 14 (-10) |
9800 |
| 5 (-15) |
12,700 |
| -4 (-20) |
16,000 |
FUEL TANK PRESSURE SENSOR VOLTAGE (4.3L)
| Value |
Volts |
| 4.5 in. Hg. Pressure (1.25 kPa) |
.3-.7 |
| Ambient Pressure |
1.3-1.7 |
| 14 in. Hg. Vacuum (-3.75 kPa) |
4.5 |
MAP SENSOR VOLTAGE
| Throttle Position |
Volts |
| At Idle |
1.0-1.5 |
| Wide Open Throttle |
4.0-4.9 |
THROTTLE POSITION SENSOR VOLTAGE
| Throttle Position |
Volts |
| At Idle |
| Models Without Electronic Throttle Control |
0.4-0.9 |
| Models With Electronic Throttle Control |
| TP Sensor No. 1 |
0.4-0.9 |
| TP Sensor No. 2 |
4.8-4.3 |
| Wide Open Throttle |
| Models Without ElectronicThrottle Control |
Greater Than 4.0 |
| Models With Electronic Throttle Control |
| TP Sensor No. 1 |
Greater Than 3.5 |
| TP Sensor No. 2 |
Less Than 1.0 |