Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001MONTE CARLO SSREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEM - SENSOR RANGE CHARTSINTRODUCTION
2001 Chevrolet Monte Carlo SS
Engine Control System - Sensor Range Charts: Introduction
2001 Chevrolet Monte Carlo SSSECTION 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.
ECT SENSOR RESISTANCE (3.0L - CATERA)
| Temperature - °F (°C) | (1) Ohms | ||
|---|---|---|---|
| 284 (140) | 68-74 | ||
| 248 (120) | 109-116 | ||
| 212 (100) | 182-191 | ||
| 176 (80) | 313-332 | ||
| 140 (60) | 573-618 | ||
| 104 (40) | 1118-1231 | ||
| 77 (25) | 1941-2173 | ||
| 68 (20) | 2351-2649 | ||
| 32 (0) | 5466-6326 | ||
| 14 (-10) | 8642-10,152 | ||
| -4 (-20) | 14,096-16,827 | ||
| -40 (-40) | 40,490-50,136 | ||
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| Temperature - °F (°C) | (3) 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 | ||||||
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| Temperature - °F (°C) | (4) 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 | ||||||||
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IAT SENSOR RESISTANCE (3.0L - CATERA)
| Temperature - °F (°C) | (1) Ohms | ||
|---|---|---|---|
| 284 (140) | 74-93 | ||
| 248 (120) | 114-141 | ||
| 212 (100) | 184-222 | ||
| 176 (80) | 312-370 | ||
| 140 (60) | 565-654 | ||
| 104 (40) | 1096-1238 | ||
| 77 (25) | 1900-2100 | ||
| 68 (20) | 2290-2551 | ||
| 32 (0) | 5119-5892 | ||
| 14 (-10) | 7943-9307 | ||
| -4 (-20) | 12,660-15,120 | ||
| -40 (-40) | 35,140-43,760 | ||
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FUEL LEVEL SENSOR VOLTAGE (5.7L - CORVETTE)
| Fuel Level | Volts (Left Tank) | Volts (Right Tank) |
|---|---|---|
| Full | 2.5 | 2.5 |
| 3/4 | 2.5 | 1.5 |
| Half | 2.5 | Less Than 1.0 |
| 1/4 | 1.7 | Less Than 1.0 |
| Empty | Less Than 1.0 | Less Than 1.0 |
FUEL PRESSURE SENSOR VOLTAGE (2.2L - 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 (2.2L - CNG)
| Temperature - °F (°C) | Ohms | Volts |
|---|---|---|
| 302 (150) | 77 | 0.14 |
| 248 (120) | 147 | 0.26 |
| 212 (100) | 240 | 0.40 |
| 176 (80) | 414 | 0.66 |
| 158 (70) | 556 | 0.84 |
| 140 (60) | 758 | 1.08 |
| 122 (50) | 1052 | 1.39 |
| 113 (45) | 1249 | 1.57 |
| 104 (40) | 1489 | 1.76 |
| 95 (35) | 1784 | 1.97 |
| 86 (30) | 2148 | 2.20 |
| 77 (25) | 2600 | 2.43 |
| 68 (20) | 3167 | 2.68 |
| 59 (15) | 3881 | 2.93 |
| 50 (10) | 4764 | 3.18 |
| 41 (5) | 5933 | 3.42 |
| 32 (0) | 7407 | 3.65 |
| 23 (-5) | 9311 | 3.86 |
| -4 (-20) | 19,326 | 4.38 |
| -40 (-40) | 57,536 | 4.77 |
| -58 (-50) | 104,390 | 4.87 |
MAP SENSOR VOLTAGE (1.9L)
| Altitude Feet | (1) Volts | ||
|---|---|---|---|
| Below 1000 | 3.8-5.5 | ||
| 1000-2000 | 3.6-5.3 | ||
| 2000-3000 | 3.5-5.1 | ||
| 3000-4000 | 3.3-5.0 | ||
| 4000-5000 | 3.2-4.8 | ||
| 5000-6000 | 3.0-4.6 | ||
| 6000-7000 | 2.9-4.5 | ||
| 7000-8000 | 2.8-4.3 | ||
| 8000-9000 | 2.6-4.2 | ||
| 9000-10,000 | 2.5-4.0 | ||
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OXYGEN SENSOR VOLTAGE
| Condition | (1) Volts | |||
|---|---|---|---|---|
| Except Metro & Prizm | ||||
| Lean | 0.1 | |||
| Rich | 1.0 | |||
| Metro & Prizm | ||||
| Lean | 0.1 | |||
| Rich | 0.9 | |||
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RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.