I'm searching for help.

I have been experiencing fouled coils in the #2 cylinder. All every time I get misfires the scan shows misfire in #2. Once the coil is fouled I'll replace it and be able to drive about 2500 - 3500 miles, then the coil will go - always in #2.

I have checked the harness connectors and they are good and well seated on the coil.

I'm thinking it could be the wire to #2. I suspect increased resistance from faulty wiring would shorten the life span of a coil.

Does anyone know way to test the wire harness with out replacing it?
I've thought about replacing it, but its quite expensive and it might not fix the problem.

Any chance it could be the control module?

 

ICMs are known to cause weird problems like you're experiencing. This would be the route that I would go.

I had a Ford Explorer back in the day that had a cracked cylinder head which would cause the same spark plug to go bad in about 1000 miles. I've never heard of a VW engine having that same defect, however.