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      08-17-2018, 07:52 PM   #6666
roastbeef
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Drives: E92 M3
Join Date: Nov 2010
Location: Orange County, CA

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Quote:
Originally Posted by Visceral View Post
In my last session today, the variable redline suddenly started decreasing to 7500 for 10-15 seconds and then going back up and then decreasing again... the shift lights would stop being progressive and would just go straight to all flashing at the new lower reline.

There were no other warning lights that came on, no other weird indicators. I'm looking over my AIM data and it had max oil temps at 263, so not horrible. The AIM data is bad for the water temps... they say 404.4 all session every session :-/

Any ideas or have you experienced this before?
I haven't personally dealt with this, but redpriest has. It's a bad sensor causing a false reading.
Double check, but I believe it is the sensor on top of the water pump underneath the plenum neck.
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