What is the best way to troubleshoot a faulty ignition coil in an Audi 80?

I recently replaced my Audi 80's ignition coil but am still experiencing issues with starting my car. How can I properly troubleshoot and diagnose the problem?

First, make sure that the ignition coil is receiving sufficient voltage from the battery. Check the voltage using a multimeter and if it is too low, try replacing the battery or checking the connections. Then, check the connection between the ignition coil and the spark plug. If it is corroded or damaged, replace it. You should also check the distributor cap and rotor for any signs of wear or damage.

One common cause of ignition coil issues in Audi 80s is a faulty engine control module (ECM). If you have ruled out any other potential causes, it may be worth checking the ECM for any error codes that could indicate a problem. If there are no error codes, you can try resetting the ECM by disconnecting the battery for a few minutes before reconnecting it and starting the car.

If you have tried troubleshooting and diagnosing the issue but are still unsure, it is best to consult with a professional mechanic. They have the experience and specialized equipment to accurately diagnose and fix any problems with your Audi 80's ignition coil. Be sure to provide them with as much information as possible, such as any error codes or previous repairs.