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      12-30-2017, 11:08 AM   #13
Racer35
Tombarra Stalker
United_States
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Drives: 2017 M3 ZCP, Mineral Grey
Join Date: Jul 2016
Location: Danville, CA

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Just got a call from the dealership. They found the problem and it's been repaired. There was a tiny leak in the intercooler that was causing pressure variance, resulting in fuel trim oscillation. They did a smoke test on the intercooler to find the leak.
Appreciate 0