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      03-03-2021, 07:15 PM   #2
M5_Raz
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Drives: BMW M5
Join Date: Aug 2020
Location: Bay Area, California

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I had a similar problem after getting my downpipes. After weeks of diagnosing at various shops, it turned out to be a loose DME connection that was causing the wire to come unplugged when accelerating hard after 4K rpm.

Make sure everything is plugged in tightly and that the DME ground wire is tightly secured with the nut.
Appreciate 0