Anyone have a B5 S4 with an A BOX ? Boston area. Need help testing if my ECU is bad.

[6speeds]

Does anyone have B5 S4 with an A box in the Boston area? I need to test to see if my ECU is bad...I would just need to put my ECU in your car and see if the same if the same issue is happening - dreaded EPC light. All other avenues to fix this issue have been explored.

Thanks! Please PM me or text/call 978 four24 353seven. Willing to compensate.