Section 132 (Engine Controls - Sensor Operating Range Charts): Introduction
WARNING: This page does not describe the selected car, but rather 36 other vehicles, including the 2003 Saturn Vue, 2003 Pontiac Montana, 2003 Pontiac Aztek, 2003 Oldsmobile Silhouette, and 2003 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
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.
ALTITUDE VS BAROMETRIC PRESSURE RESISTANCE (EXCEPT 3.0L)
| Altitude - Feet (Meters) |
kPa |
| -1000 (-305) |
101-105 |
| 0 Sea Level |
96-104 |
| 1000 (305) |
94-102 |
| 2000 (610) |
90-98 |
| 3000 (914) |
87-95 |
| 4000 (1219) |
83-91 |
| 5000 (1524) |
80-88 |
| 6000 (1829) |
77-85 |
| 7000 (2134) |
74-82 |
| 8000 (2438) |
71-79 |
| 9000 (2743) |
69-77 |
| 10,000 (3048) |
66-74 |
| 11,000 (3353) |
64-72 |
| 12,000 (3658) |
61-69 |
| 13,000 (3962) |
58-66 |
| 14,000 (4267) |
56-64 |
FUEL GAUGE PULSE WIDTH MODULATION OUTPUT (CNG)
| Percent Fuel |
PWM Output |
| 10 |
17 |
| 20 |
33 |
| 30 |
45 |
| 40 |
52 |
| 50 |
56 |
| 60 |
59 |
| 70 |
62 |
| 80 |
64 |
| 90 |
67 |
| 100 |
70 |
FUEL RAIL PRESSURE SENSOR OUTPUT VOLTAGE VS PRESSURE (CNG)
| psi (kPa) |
Volts |
| 0 (0) |
0.5 |
| 10 (68.95) |
0.9 |
| 20 (137.90) |
1.3 |
| 30 (206.85) |
1.7 |
| 40 (275.80) |
2.1 |
| 50 (344.75) |
2.5 |
| 60 (413.70) |
2.9 |
| 70 (483.65) |
3.3 |
| 80 (551.60) |
3.7 |
| 90 (620.55) |
4.1 |
| 100 (689.50) |
4.5 |
FUEL RAIL TEMPERATURE SENSOR OUTPUT RESISTANCE VS TEMPERATURE VS VOLTAGE (CNG)
| Temperature - °F (°C) |
Volts |
Ohms |
| -58 (-58) |
4.97 |
1,579,500.00 |
| -40 (-40) |
4.93 |
1,070,550.00 |
| -4 (-20) |
4.74 |
186,000.00 |
| 32 (0) |
4.24 |
55,620.00 |
| 50 (10) |
3.81 |
32,100.00 |
| 68 (20) |
3.29 |
19,185.00 |
| 77 (25) |
3.00 |
15,000.00 |
| 86 (30) |
2.71 |
11,818.50 |
| 95 (35) |
2.42 |
9376.50 |
| 104 (40) |
2.14 |
7489.50 |
| 113 (45) |
1.88 |
6021.00 |
| 122 (50) |
1.64 |
4870.50 |
| 140 (60) |
1.23 |
3250.50 |
| 158 (70) |
0.91 |
2218.50 |
| 176 (80) |
0.67 |
1543.50 |
| 212 (100) |
0.37 |
789.75 |
| 248 (120) |
0.21 |
433.80 |
| 293 (145) |
0.11 |
220.95 |
FUEL TANK PRESSURE SENSOR OUTPUT PRESSURE VS VOLTAGE (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 TANK TEMPERATURE SENSOR RESISTANCE VS TEMPERATURE VS VOLTAGE (CNG)
| Temperature - °F (°C) |
Volts |
Ohms |
| -58 (-50) |
4.87 |
104,390 |
| -40 (-40) |
4.77 |
57,536 |
| -4 (-20) |
4.38 |
19,326 |
| 23 (-5) |
3.86 |
9311 |
| 32 (0) |
3.65 |
7407 |
| 41 (5) |
3.42 |
5933 |
| 50 (10) |
3.18 |
4764 |
| 59 (15) |
2.93 |
3881 |
| 68 (20) |
2.68 |
3167 |
| 77 (25) |
2.43 |
2600 |
| 86 (30) |
2.20 |
2148 |
| 95 (35) |
1.97 |
1784 |
| 104 (40) |
1.76 |
1489 |
| 113 (45) |
1.57 |
1249 |
| 122 (50) |
1.39 |
1052 |
| 140 (60) |
1.08 |
758 |
| 158 (70) |
0.84 |
556 |
| 176 (80) |
0.66 |
414 |
| 212 (100) |
0.40 |
240 |
| 248 (120) |
0.26 |
147 |
| 302 (150) |
0.14 |
77 |
SENSOR TEMPERATURE VS RESISTANCE (EXCEPT 2.0L & 2.5L)
| 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 (2.0L & 2.5L)
| 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 |