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.
1988 Alfa Romeo Spider GraduateFACTORY OEM SERVICE PROCEDURE
Air Temperature Sensor
On models with air temperature sensor, turn ignition off. Dis connect electrical connector at airflow meter and connect ohmmeter be- tween terminals No. 6 and 27. If readings are not to specification, replace airflow meter.
TEMPERATURE SENSOR RESISTANCE
| Temperature | Ohms |
|---|---|
| 32°F (0°C) | 5500-6100 |
| 68°F (20°C) | 2000-3000 |
| 122°F (50°C) | 760-970 |
| 178°F (50°C) | 270-380 |
Factory Service Tools
Use the Manual With the Right Hardware
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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.