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.
1990 Audi 200 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Sensor Plate Lever/Control Plunger
- Remove ignition coil wire and ground. Crank engine for 10 seconds.
- Using pliers or a magnet, lift sensor plate through entire range. Resistance should be felt through range of movement. Move sensor plate quickly from raised position to rest position. Resistance should NOT be felt if plate is moved quickly. If resistance is felt, replace airflow sensor (fuel distributor).
- If is hard to move sensor plate in one direction and easy in opposite direction, control plunger is sticking. Replace fuel distributor.
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.