EITMS disabled. Will it hurt the engine ?
Seasoned HDF Member
Joined: Feb 2008
Posts: 22,998
Likes: 11,439
Newer bikes you can turn it off and on as you wish in seconds. having it on hurts nothing. Some as you raise the rpms a bit it shuts off anyway. Lot of fuss over nothing. It is meant for the rider not the bike anyway.
If you wish to reduce the flt heat on rider and passenger get rid of the CAT. The heat , that comes off them is a big part of the problem . That is how they work by getting real hot. Removing it has No effect on your engine.
Pisses EPA off a bit.
If you wish to reduce the flt heat on rider and passenger get rid of the CAT. The heat , that comes off them is a big part of the problem . That is how they work by getting real hot. Removing it has No effect on your engine.
Pisses EPA off a bit.
Last edited by smitty901; Sep 14, 2019 at 08:47 AM.
Outstanding HDF Member
Joined: Aug 2009
Posts: 2,858
Likes: 217
From: Puyallup Wa.
Not true on 14+ Ambient Air Temperature Control.
Road Master
Joined: Nov 2006
Posts: 1,164
Likes: 401
From: Port Coquitlam B.C.
Mines off most of the time but I will turn it on if I get caught in heavy traffic on a hot day. I have a powervision and I've talked to both Fuelmoto and Dynojet asking if there's a way to change that 80 degree threshold to 90 or 95 degrees. They both said no, you can adjust the engine temp settings but not the ambient temp setting. So I just turn it off.
Extreme HDF Member
Joined: Jul 2012
Posts: 15,620
Likes: 27,704
From: SoCal
Since I don't have one of the AATC affected bikes, I did not know that.
All the more reason to implement a good heat managment system and turn that sucker off, I would think.
Novice
Joined: Jun 2019
Posts: 24
Likes: 25
From: Western PA
Physics says that it will require the same amount of energy to spin the crank at the same idle speed whether you fire one or two cylinders. Unless you open the valves on the dead cylinder to eliminate the pumping losses, the front cylinder works harder when the back one shuts off. The BTUs are the same. It just moves the heat away from our inner right thigh. I run mine off all of the time and never consider turning it on. Besides, I like the Harley idle sound more than a big single idling.
Road Captain
Joined: Jul 2015
Posts: 565
Likes: 152
From: Calgary, Alberta
When it turned on, I almost always got a ping when I used the throttle to get going again. That ping really bothered me. I added a PV, header, mufflers, intake and a Jagg oil cooler /w fan. It's been a very long time since it's come on. As mine is a 2012 engine temp was the main factor in it turning on, I think. It's still enabled, but it hasn't activated in the past 2 summers at all, since I added the oil cooler. The oil cooler fan runs a lot, but EITMS never does anymore.
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