EITMS enabled/disabled
Ultimate HDF Member
Joined: Feb 2010
Posts: 8,039
Likes: 1,305
From: Jayhawk Country
Why would their be exhaust fumes coming off the rear cylinder when the injector is turned off? It has no fuel to burn so why would their be fumes?
Road Warrior
Joined: Jun 2007
Posts: 1,788
Likes: 4
From: Here
Good question. Another one is what would be the reason for ever turning it off? IMO, the way "it sounds" isn't a very good one but WTFDIK...
Road Captain
Joined: Sep 2009
Posts: 718
Likes: 1
From: Panama City, FL
Leave it on....
When I know I'm going through allot of stop / go traffic, I turn it on to minimize heat build up. I also run a overly rich idle speed on my PC-V to keep it as cool as possible.
I entered "6" in the "0" % TP, at 750-1000 rpms, or ide speed. It idles very smoothly, and keeps it a bit cooler in traffic.
I entered "6" in the "0" % TP, at 750-1000 rpms, or ide speed. It idles very smoothly, and keeps it a bit cooler in traffic.
Even the Harley Manual states there will be a noticeable difference in engine cadence and the smell of unburnt fuel. If you can't smell it I'd have your olfactory glands checked. It'll knock you out sitting at a stop light...
If there's no reason to turn it off, why oh why does that option even exist? And if sound wasn't important we'd all run stock pipes or ride Goldwings. Come on guys, it's a thread about IETMS (or whatever you want to call it). The system is crap. It does NOT remove sufficient heat from your motor to protect anything except maybe H-D's reputation with first-time H-D buyers who perceive a problem with all this heat hype going around. If you are sitting in traffic (not moving) long enough to require having to shut off 50% of your engine) I would advise you to pick another route. Ever walk out in your garage after a long ride and put your hand near your engine? That thing is still too hot to touch after 30 minutes, maybe even longer. So you really think that shutting off the back cylinder in traffic while not moving for 5 minutes makes a difference? Also, regarding the smell, the fuel continues to be injected into the cylinder (to supposedly aid in cooling) while the spark is secured. If you think injecting raw fuel into a 300 degree combustion chamber without igniting it doesn't produce a smell (the exhaust valve continues to operate and expend the fumes) you're all nuts. To each his own I say. I choose not to enable it because it's crap, pure and simple. Ride on...
Road Warrior
Joined: Jun 2007
Posts: 1,788
Likes: 4
From: Here
If there's no reason to turn it off, why oh why does that option even exist? And if sound wasn't important we'd all run stock pipes or ride Goldwings. Come on guys, it's a thread about IETMS (or whatever you want to call it). The system is crap. It does NOT remove sufficient heat from your motor to protect anything except maybe H-D's reputation with first-time H-D buyers who perceive a problem with all this heat hype going around. If you are sitting in traffic (not moving) long enough to require having to shut off 50% of your engine) I would advise you to pick another route. Ever walk out in your garage after a long ride and put your hand near your engine? That thing is still too hot to touch after 30 minutes, maybe even longer. So you really think that shutting off the back cylinder in traffic while not moving for 5 minutes makes a difference? Also, regarding the smell, the fuel continues to be injected into the cylinder (to supposedly aid in cooling) while the spark is secured. If you think injecting raw fuel into a 300 degree combustion chamber without igniting it doesn't produce a smell (the exhaust valve continues to operate and expend the fumes) you're all nuts. To each his own I say. I choose not to enable it because it's crap, pure and simple. Ride on...
You are correct about one thing though... to each his own.
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Seasoned HDF Member
Joined: Aug 2007
Posts: 39,375
Likes: 2,111
From: Central, Ca.
I just leave mine on, putt putt putt, thought it strange that it was disabled from the factory though. Supposed to shut down the injector and spark to the cyl. It does often in the summer at lights.
Ultimate HDF Member
Joined: Feb 2010
Posts: 8,039
Likes: 1,305
From: Jayhawk Country
If there's no reason to turn it off, why oh why does that option even exist? And if sound wasn't important we'd all run stock pipes or ride Goldwings. Come on guys, it's a thread about IETMS (or whatever you want to call it). The system is crap. It does NOT remove sufficient heat from your motor to protect anything except maybe H-D's reputation with first-time H-D buyers who perceive a problem with all this heat hype going around. If you are sitting in traffic (not moving) long enough to require having to shut off 50% of your engine) I would advise you to pick another route. Ever walk out in your garage after a long ride and put your hand near your engine? That thing is still too hot to touch after 30 minutes, maybe even longer. So you really think that shutting off the back cylinder in traffic while not moving for 5 minutes makes a difference? Also, regarding the smell, the fuel continues to be injected into the cylinder (to supposedly aid in cooling) while the spark is secured. If you think injecting raw fuel into a 300 degree combustion chamber without igniting it doesn't produce a smell (the exhaust valve continues to operate and expend the fumes) you're all nuts. To each his own I say. I choose not to enable it because it's crap, pure and simple. Ride on...