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 MANUALSPLYMOUTH1994COLT VISTA SE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESENSOR RANGE CHARTSENGINE CONTROLS - SENSOR OPERATING RANGE CHARTSINTRODUCTIONNOTES
1994 Plymouth Colt Vista SE, Standard
Engine Controls - Sensor Operating Range Charts: Introduction: Notes
1994 Plymouth Colt Vista SE, StandardSECTION Notes
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 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. For connector and terminal identification, see WIRING DIAGRAMS
article in the ENGINE PERFORMANCE Section.
AIRFLOW METER HERTZ TEST (1)
| Condition | Hz | |||
|---|---|---|---|---|
| 1.8L | ||||
| 750 RPM | 23-49 | |||
| 2000 RPM | 51-91 | |||
| 2.4L | ||||
| 750 RPM | 18-44 | |||
| 2000 RPM | 43-83 | |||
|
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COOLANT TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 32 (0) | 5800 |
| 68 (20) | 2400 |
| 104 (40) | 1100 |
| 176 (80) | 300 |
| Temperature °F (°C) | Ohms | ||||
|---|---|---|---|---|---|
| 122 (50) | 60-83 | ||||
| 212 (100) | 11-14 | ||||
|
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INTAKE AIR TEMPERATURE SENSOR RESISTANCE
| Temperature °F (°C) | Ohms |
|---|---|
| 32 (0) | 6000 |
| 68 (20) | 2700 |
| 176 (80) | 400 |
OXYGEN SENSOR VOLTAGE TEST (1)
| Application | Volts | ||
|---|---|---|---|
| Lean | 0.1 | ||
| Rich | 1.0 | ||
|
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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.