Negative corrections during normal driving

mediapimp · 04-02-2016, 08:05 PM

Recently installed a Cobb AP v3 and just changed all plugs & coils on my e92 n54.

I have all 6 cyl timing cor showing on the AP gauges and when I drive around normally with light acceleration, I am getting all kinds of negative correction on all cylinders.

I know I need to log some WOT pulls to determine how the car is performing but I was just curious if all of the negative corrections under light throttle are normal on this platform?

Thanks for any info!

sudo4re · 04-02-2016, 09:48 PM

I noticed the same thing with mine and was told that's just the DME adjusting the timing for emission purposes. You only have to worry about corrections under full throttle/engine load or at least that's my understanding.

04-02-2016, 08:05 PM	#1
mediapimp Private First Class 24 Rep 160 Posts Drives: 2012 335is Join Date: Aug 2015 Location: Texas iTrader: (4)	Negative corrections during normal driving Recently installed a Cobb AP v3 and just changed all plugs & coils on my e92 n54. I have all 6 cyl timing cor showing on the AP gauges and when I drive around normally with light acceleration, I am getting all kinds of negative correction on all cylinders. I know I need to log some WOT pulls to determine how the car is performing but I was just curious if all of the negative corrections under light throttle are normal on this platform? Thanks for any info!
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04-02-2016, 09:48 PM	#2
sudo4re Second Lieutenant 46 Rep 236 Posts Drives: 2020 X3M Competition Join Date: Sep 2014 Location: Earth, circa 21st Century iTrader: (9)	I noticed the same thing with mine and was told that's just the DME adjusting the timing for emission purposes. You only have to worry about corrections under full throttle/engine load or at least that's my understanding. __________________ I don't drive fast, I just fly low...
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