2017 FXDB rough idle when hot

[ChrisFXDB]

I have a 2017 FXDB with a Two brothers 2-1 exhaust, Arlen Ness Big Sucker and Power Commander V. Was running great but all of a sudden I've been experiencing an issue at idle. When I come to a stop it idle fine around 950-1000 rpms for 10-15 seconds then it will drop to around 870-890 for a second and then catch itself and go back to normal idle. It has also died twice while slowing down to a stop. Only does this when the engine is warm.

Things I have checked so far are:

Battery
Spark plugs-new
Cleaned IAC
Different fuel

Any thoughts?

[ChrisFXDB]

Forgot to mention that after it returns to normal idle it will be fine for another 10-15 seconds and then do the same thing.

[Scotty]

Any error codes?
Could be a speed sensor problem
Could be a O2 sensor problem
Could be a TPS problem
Could be a Power Commander V problem

[ChrisFXDB]

No error codes unfortunately. The power commander is only a month old.

[Hossamania]

No error codes unfortunately. The power commander is only a month old.

It may not be the problem, but it can't be ruled out either. Just like tires and batteries, even new, they sometimes fail or have a defect.
Try unplugging it and plugging it back in.
Of course, I have to be a smartass and say try unplugging it, and plugging in a Power Vision...

[Hossamania]

If no codes, it could be as simple as a vacuum leak.

[ChrisFXDB]

Tried unplugging and plugging back in and it runs the same.

[Scotty]

If no codes, it could be as simple as a vacuum leak.

could be intake seals got moved slightly when Big Sucker installed and are just now showing up as a problem.

[ChrisFXDB]

 I thought intake leaks usually cause high rpms, I may be wrong. But when I removed my intake to clean the IAC everything seemed in order.

[Scotty]

I thought intake leaks usually cause high rpms, I may be wrong. But when I removed my intake to clean the IAC everything seemed in order.

No they can cause a low idle problem as the ECM and PCV try to compensate.
You need to spray around the intake seals where they join to the cylinder and see if it stalls.
I have used water and brake clean and if you use brake clean just don't breath 

[ChrisFXDB]

Sprayed water around the intake seals this morning and there was no change in rpm or stalling.

[Scotty]

As long as this was after the motor has been ridden and is hot because doing it cold is a waste of time.

[BVHOG]

Speed sensor

[Scotty]

Speed sensor

That was first on my list up further but don't know if he bothered looking at at the sensor.

[CVOThunder]

Dumb idea but is Engine Idle Temperature Management System (EITMS) install on this bike and could it be an issue? Doubtful but the through crossed my feeble mind.

[ChrisFXDB]

I did remove and clean speed sensor which really wasn't dirty. EITMS is disabled.