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 it will 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.
DFT , ECT & IAT SENSOR RESISTANCE (EXCEPT TRACKER)
| Temperature - °F (°C) |
Ohms |
| 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 |
ECT & IAT SENSOR 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 PRESSURE SENSOR VOLTAGE (5.0L & 5.7L - CNG)
| psi (kPa) |
Volts |
| 0 (0) |
0.50 |
| 125 (862) |
0.63 |
| 438 (3021) |
0.94 |
| 750 (5172) |
1.25 |
| 1063 (7331) |
1.56 |
| 1375 (9483) |
1.88 |
| 1688 (11,641) |
2.19 |
| 2000 (13,793) |
2.50 |
| 2313 (15,952) |
2.81 |
| 2625 (18,103) |
3.13 |
| 2938 (20,262) |
3.44 |
| 3250 (22,414) |
3.75 |
| 3563 (24,572) |
4.06 |
| 3875 (26,724) |
4.38 |
| 4000 (27,586) |
4.54 |
FUEL TEMPERATURE SENSOR RESISTANCE (5.0L & 5.7L - CNG)
| Temperature - °F (°C) |
Voltage |
Ohms |
| 302 (150) |
0.14 |
77 |
| 248 (120) |
0.26 |
147 |
| 212 (100) |
0.40 |
240 |
| 176 (80) |
0.66 |
414 |
| 158 (70) |
0.84 |
556 |
| 140 (60) |
1.08 |
758 |
| 122 (50) |
1.39 |
1052 |
| 113 (45) |
1.57 |
1249 |
| 104 (40) |
1.76 |
1489 |
| 95 (35) |
1.97 |
1784 |
| 86 (30) |
2.20 |
2148 |
| 77 (25) |
2.43 |
2600 |
| 68 (20) |
2.68 |
3167 |
| 59 (15) |
2.93 |
3881 |
| 50 (10) |
3.18 |
4764 |
| 41 (5) |
3.42 |
5933 |
| 32 (0) |
3.65 |
7407 |
| 23 (-5) |
3.86 |
9311 |
| -4 (-20) |
4.38 |
19,326 |
| -40 (-40) |
4.77 |
57,536 |
| -58 (50) |
4.87 |
104,390 |
MAP SENSOR VOLTAGE
| Throttle Position |
Volts |
| At Idle |
1.0-1.5 |
| Wide Open Throttle |
4.0-4.9 |
OXYGEN SENSOR VOLTAGE
| Condition |
Volts |
| Lean |
.1 |
| Rich |
.9 |
THROTTLE POSITION SENSOR VOLTAGE
| Throttle Position |
Volts |
| At Idle |
0.6 |
| Wide Open Throttle |
Greater Than 4.0 |