Running rough at 30mph low rpm

[dandor268]

Hi
I've had the car 4 years or so, this is the first winter that I've noticed when my Automatic 2014 Infiniti Q60 S (54,000 miles) is driving at about 30 mph, it sounds and drives rough.  The best way i can describe it, is if it's not getting enough gas for the gear that is automatically selected.
Cruising at 30mph the RPM is low, around 1000 rpm.  If I accelerate to get out of that gear, the issue is gone.  If i use the paddle shifters and control the gears myself, i cannot reproduce the issue. It's almost as if the automatic gear shifting is putting it into too high of a gear for that speed.  There is no issue at idle either.  On the rare days it's warmer, there's no issue.  If related, I did clean the throttle body a couple years ago using TB cleaner, which resolved and issue of the car dying in idle a few times.

Could i ask for some technical advice?  I'm limited to 30mph due to a speed camera and the car is in fantastic condition.

[dandor268]

I disconnected the battery for 2 days, and also test drove without both filters installed. The issue continues. Any ideas?

[VStar650CL]

Sounds like maybe the Torque Converter clutch isn't disengaging properly. Have you scanned the transmission for codes?

[Sourdoughjim]

My Quest had a similar issue. Threw a MAF sensor code. It had a split in the rubber bellows that attaches to the air cleaner box.