Thread: Evolve tune
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      10-10-2016, 12:56 PM   #27
opihi5
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Drives: 2011 m3
Join Date: Feb 2016
Location: San Diego

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2011 BMW M3  [10.00]
Quote:
Originally Posted by Long_Wang View Post
Yeah I believe that's what is on the car as it was catless and set up properly when I got it. I just think the time of driving it when the PO had it and the time I've had it might have toasted the secondary cats?

The idling isn't an I doling issue, it's an issue when I come off the throttle to a stop. It will dip down to like 200, almost stall then pop back up to 1200 with a self induced rev and then level back out.

The throttle is also a bit sluggish overall and more so when getting going in the morning after sitting all night.
Did you recently replace the o2 sensors, the secondary cats should not have toasted out. First things first is to change the gas station you go to.
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