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.
1987 Volkswagen Vanagon Base, AWDFACTORY OEM SERVICE PROCEDURE
Intake Air Sensor
- Turn ignition off. Disconnect air intake hose. Disconnect wiring connector from airflow sensor. Connect ohmmeter to terminal Nos. 3 and 4 of airflow sensor. Resistance should be approximately 500-1000 ohms.
- Connect ohmmeter to terminal Nos. 2 and 3. Resistance should change as sensor plate is moved. Replace airflow meter if sensor is defective. If replaced, idle speed and CO level must be adjusted.
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.