My BMW X3 picked up a miss on cylinders 2 and 5. Plugs and coil packs were replaced and the wiring feeding the injectors and coil packs were checked but the miss was still present on cylinders 2 and 5. I knew at this point it must be in the computer. I looked up computer repair companies and found ECU Pro! The reviews were good so I reached out to them by email making sure they just needed my ECU, CAS and the key. Their response was fast with a yes, that’s all we need. I paid the 159.00 and shipped my items off to them. Praying to hear back that it was definitely the computer causing the miss. A week later I receive an email advising the computer had bad circuits on 2 and 5 and they made the repairs. They even sent a video of my computer running on an X3. Yes it was my computer because I wrote my name on it and I could see it in the video. I received my computer back in two days and installed it on my X3. Running like new again. I would recommend EVU Pro to anyone that is having computer problems with their vehicle.