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      04-29-2013, 02:59 PM   #173
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
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Quote:
Originally Posted by VANOS View Post
Hey guys,

I am having an issue with my BMS. I don't know if it's me or its the chip, but I am not getting the same power as i was before. I have noticed it for a week and a half now and i decided to do several 0-60 runs. It was a cold night, clear night. It was 59 degrees. My first run i got 5.8, second 5.8, third 5.7, last 5.9... I don't know whats going on, but i am hoping its just me. Before in the same weather and same way i have been testing, i would get 5.5 - 5.3!!! not i am getting 0-60 times like as if its a stock car (5.8)

I truly hope its just me. Any reason why its acting this way? I would appreciate the help!
Perhaps a bad tank of gas. Maybe the JB4 noticed something unsafe and decided to dial back boost or disable itself. In cases like that you'd use the USB cable to do a short datalog and send that in to BMS for assistance.

Mike
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