The ECU pros are great! I have a 335i that had a constant O2 sensor code. They confirmed it was the DMEs fault. I had 2 DMEs on hand that I thought were both bad. I sent both, they were honest and told me that one of them was completely fine and that I wouldn’t need to repair or replace the bad DME. I tried the working DME and my car is on the road. 👍
6 months ago
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