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
Altitude COMPENSATOR Sensor
Disconnect wiring from sensor. Measure resistance between terminals No. 2 and 3. Measure resistance between terminals No. 1 and 2. If resistance values are not as specified, replace sensor.
ALTITUDE COMPENSATOR SPECIFICATIONS
| Terminals | Ohms | |
|---|---|---|
| 2-3 | 2000-3000 | |
| 1-2 | ||
| At 0-4000 Ft. | 500-4500 | |
| Above 4000 Ft. | 2500-6000 | |
NOTE:
For all other models, refer to appropriate article in 1988 COMPUTERIZED ENGINE CONTROLS section.
Factory Service Tools
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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.