14 Limited EITMS changes
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Cruiser
Joined: Apr 2012
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From: home
2014 Limited EITMS changes
So I'm in stop and go traffic and I notice the EITMS (Engine Idle Temp Management Sys) is activating (eng running just on front cylender) at every red light. Read the manual last night so I thought I knew EITMS activates when engine temps are above 284 deg. Then noticed the radiator fans not on. Thought this was odd. Went to dealer who called HD headquarters seeking answer.
I think this is new for 2014 bikes. The EITMS activates when outside air temps are above 80 deg.
Manual is misprinted.
I think this is new for 2014 bikes. The EITMS activates when outside air temps are above 80 deg.
Manual is misprinted.
Last edited by curtis myers; Aug 30, 2013 at 06:37 AM. Reason: add photo
Road Captain
Joined: Sep 2011
Posts: 618
Likes: 3
From: Maryland
I'm assuming it can still be turned off like the older model bikes, yes? To me, if the bike still needs it (I found it basically does nothing on mine), then water cooling the heads is a moot point.
Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
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From: anacoco, la
i think you may have got some bad poop. outside air temp should have nothing to do with it, cylinder head temp does. i'm not saying you're wrong, but i would have to see the spec on this. how does the ecm know outside air temp anyway?
Road Captain
Joined: Jul 2008
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Eitms
EITMS does not help cool the motor and when it activates it does not mean the motor is overheating, it is a strategy that is in place to try to slow down the rate that engine temp increases. On an air cooled motor running stationary, the longer it runs the hotter it's going to get. It is set at a lower activation temp on the 2014. I keep it turned on all the time on my 2014 Ultra Limited and yes it does come on at every light right now in town just like my 2009 Street Glide did when outside temps were above 80 degrees and humid. However when sitting at the light I can also reach out to the side of the lowers and feel the radiators doing their job as well. I do not feel any engine heat radiating up to me as I did with the 2009 Street Glide. Very pleased with the water cooled system so far.
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,463
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From: Charleston, SC
EITMS does not help cool the motor and when it activates it does not mean the motor is overheating, it is a strategy that is in place to try to slow down the rate that engine temp increases. On an air cooled motor running stationary, the longer it runs the hotter it's going to get. It is set at a lower activation temp on the 2014. I keep it turned on all the time on my 2014 Ultra Limited and yes it does come on at every light right now in town just like my 2009 Street Glide did when outside temps were above 80 degrees and humid. However when sitting at the light I can also reach out to the side of the lowers and feel the radiators doing their job as well. I do not feel any engine heat radiating up to me as I did with the 2009 Street Glide. Very pleased with the water cooled system so far.
"During hot idle, or when the motorcycle is off-throttle and running at hot temperatures, EITMS shuts off fuel to the engines rear cylinder, leaving it to idle on the front cylinder only. Without combustion, the rear cylinder and exhaust header will begin to cool, bringing relief to the rider (and passenger) soon after. Once the rear cylinder cools to a predetermined temperature, or as soon as the rider accelerates, both cylinders resume operation. And by maintaining constant rpm during rear cylinder shutdown, transitions between one and two cylinder operation are nearly seamless.
EITMS is purely for rider comfort. When it activates and shuts off the rear cylinder, its not because the motor is overheating. Its designed to reduce the heat radiating from the rear cylinder to the rider."
http://www.harley-davidson.com/en_US...conditions.pdf
lp
Road Captain
Joined: Jul 2008
Posts: 608
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Actually Harley marketed it as a way to help "Cool" the motor as well for rider comfort. You can find that in the marketing info like below.
"During hot idle, or when the motorcycle is off-throttle and running at hot temperatures, EITMS shuts off fuel to the engines rear cylinder, leaving it to idle on the front cylinder only. Without combustion, the rear cylinder and exhaust header will begin to cool, bringing relief to the rider (and passenger) soon after. Once the rear cylinder cools to a predetermined temperature, or as soon as the rider accelerates, both cylinders resume operation. And by maintaining constant rpm during rear cylinder shutdown, transitions between one and two cylinder operation are nearly seamless.
EITMS is purely for rider comfort. When it activates and shuts off the rear cylinder, its not because the motor is overheating. Its designed to reduce the heat radiating from the rear cylinder to the rider."
http://www.harley-davidson.com/en_US...conditions.pdf
lp
"During hot idle, or when the motorcycle is off-throttle and running at hot temperatures, EITMS shuts off fuel to the engines rear cylinder, leaving it to idle on the front cylinder only. Without combustion, the rear cylinder and exhaust header will begin to cool, bringing relief to the rider (and passenger) soon after. Once the rear cylinder cools to a predetermined temperature, or as soon as the rider accelerates, both cylinders resume operation. And by maintaining constant rpm during rear cylinder shutdown, transitions between one and two cylinder operation are nearly seamless.
EITMS is purely for rider comfort. When it activates and shuts off the rear cylinder, its not because the motor is overheating. Its designed to reduce the heat radiating from the rear cylinder to the rider."
http://www.harley-davidson.com/en_US...conditions.pdf
lp
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Road Captain
Joined: Jul 2008
Posts: 608
Likes: 1,745
Next time you get back from a ride on a hot day, turn off the bike. Now you have shut down BOTH heads thus "cooling" both head pipes. Wait a couple minutes and put your hand on the pipe and honestly tell me you think they are any "cooler". Again, EITMS helps prevents it getting hotter. Only extended period of time or cold water is going to cool them down.
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Thread Starter
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Cruiser
Joined: Apr 2012
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From: home
Yes, turning the throttle back for several seconds enables and disables the EITMS feature.
Road Warrior
Joined: Aug 2008
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From: Acworth, Ga
So I'm in stop and go traffic and I notice the EITMS (Engine Idle Temp Management Sys) is activating (eng running just on front cylender) at every red light. Read the manual last night so I thought I knew EITMS activates when engine temps are above 284 deg. Then noticed the radiator fans not on. Thought this was odd. Went to dealer who called HD headquarters seeking answer.
I think this is new for 2014 bikes. The EITMS activates when outside air temps are above 80 deg.
Manual is misprinted.
I think this is new for 2014 bikes. The EITMS activates when outside air temps are above 80 deg.
Manual is misprinted.
