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
Secondary Resistance
- Check wiring between power stage and ignition coil, and power stage ground wire for corrosion and damage. On version one, disconnect ignition coil power stage connector and ignition coil wire. See Figure .
- On version 2, disconnect ignition coil power stage connector and remove screw from top of assembly. See Figure . On both versions, connect Multimeter (US 1119) between terminal No. 1 and coil wire socket.
- Resistance should be 5000-6000 ohms. If resistance is not as specified, replace ignition coil.
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.