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.
Atmospheric Pressure Sensor
Connect voltmeter to "D" terminal of atmospheric pressure sensor and ground. See Fig 1 . Turn ignition and note voltage. Voltage should be within specification. See ATMOSPHERIC PRESSURE SENSOR VOLTAGE table. Replace sensor if not within specification.
| Application | Voltage |
|---|---|
| Below 6500 Ft. | 3.5-4.5 |
| Above 6500 Ft. | 2.5-3.5 |
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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.