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      07-26-2019, 11:33 AM   #41
BlueM3Wagon
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Drives: 2012 M3 e91
Join Date: Mar 2017
Location: Kettering ohio

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Originally Posted by rjahl View Post
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Originally Posted by Michaellcoates View Post
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Originally Posted by rick100 View Post
I thought when the car is hot you should turn the heat to max to help it. Not the ac. Maybe i got it wrong
That's what I thought too but the idle seemed smoother with AC on?
Are you able to log both target and actual AFR at the same time? I would expect the DME to throw a code if the there is too much variation between them.

If everything is running correctly, you can't alter the coolant temp by turning on the heater vs the AC. The DME controls the coolant temp and has multiple programmed temperatures. Something like 90-105. Economy mode vs power.
Yes I can monitor commanded AFR and metered AFR commanded was sitting at 14.5-14.7 at idle and was averaging 11.5, when giving it throttle for cruising its commanding 14.7-15 but running 17-20 AFR.

I grabbed lunch and came back to start my car, for 15 minutes it's been reading steady dead nuts on AFR commanded to metered.

Haha like is said so random
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