Need help solving problem
Ultimate HDF Member
Joined: Jul 2014
Posts: 5,649
Likes: 430
From: MASS_hole
Heat Management Sytem
The ESPFI systems on 2001 and Later EFI- equipped Softail models, 2002 and Later EFI- equipped Touring models, 2004 and Later Dyna models and 2004 and later V-Rod models
also incorporate a sophisticated heat management system that operates in three-phases to
keep things cool in extreme conditions.
Phase I:
If the ECM detects engine temperature above approximately 300°F while moving
or stationary it reduces the idle speed. A lower idle speed produces fewer combustion events
per minute and that reduces engine heat.
Phase II:
If the ECM detects an engine
temperature thats still drifting higher while moving or
stationary it richens the AFR. An increased amount of fuel in the air/fuel mixture has a
cooling effect on the engine.
Phase II
IIf the ECM detects an engine temperature thats still drifting higher while moving or stationary it directs the fuel
injectors to skip, (only when the bike is stationary) and not deliver fuel on every intake stroke.
This limits the number of combustion events taking place,
which produces less heat.
The 3-Phases just described function seamlessly, and the rider may not notice the transition
from one phase to the next.
The ESPFI systems on 2001 and Later EFI- equipped Softail models, 2002 and Later EFI- equipped Touring models, 2004 and Later Dyna models and 2004 and later V-Rod models
also incorporate a sophisticated heat management system that operates in three-phases to
keep things cool in extreme conditions.
Phase I:
If the ECM detects engine temperature above approximately 300°F while moving
or stationary it reduces the idle speed. A lower idle speed produces fewer combustion events
per minute and that reduces engine heat.
Phase II:
If the ECM detects an engine
temperature thats still drifting higher while moving or
stationary it richens the AFR. An increased amount of fuel in the air/fuel mixture has a
cooling effect on the engine.
Phase II
IIf the ECM detects an engine temperature thats still drifting higher while moving or stationary it directs the fuel
injectors to skip, (only when the bike is stationary) and not deliver fuel on every intake stroke.
This limits the number of combustion events taking place,
which produces less heat.
The 3-Phases just described function seamlessly, and the rider may not notice the transition
from one phase to the next.
Last edited by splattttttt; Jun 25, 2016 at 09:31 PM.
Thread Starter
|
Intermediate
Joined: Jun 2016
Posts: 47
Likes: 1
From: las vegas, nv
Yea its Carbed. Just got back from ride, when bike got hot same ol crap. Bike doesnt die, idles just fine, something is losing its connection, I can go through 1st and 2nd barley, and it will engage again in 3rd or 4th gear but cuts in and out, gauges still glitching. But again ride was great to temp reach full riding temp 180-200.
Tourer
Joined: May 2015
Posts: 293
Likes: 15
From: Vacaville
It might help to narrow your search, if you pulled one fuse at a time and rode it after each try, that way at least you can know which system it is coming from. Start with the easy stuff like lights, horn, etc. Isolate which system is failing to make your search for the cause easier. Of course you can't do that to the motor systems, but seeing as it is carbed anyhow, no need to power the EFI system at least.
Thread Starter
|
Intermediate
Joined: Jun 2016
Posts: 47
Likes: 1
From: las vegas, nv
Are you saying when it starts acting up pull a fuse (one fuse at a time) ride it without the fuse in and see if it stops acting up.
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Tourer
Joined: May 2015
Posts: 293
Likes: 15
From: Vacaville
yes, exactly! It narrows the possible failure point to a single circuit hopefully. Be careful though, as riding without brake and signals is not legal, but it would eliminate a lot of circuits. I'd find a quiet back road somewhere and spend a bit of time messing with it. Clearly it is electrical. So the more systems you can rule out, the better chance you will have of finding the cause. Sometimes you have to find out, what it IS NOT, to find what it is. Other than that your flying blind and throwing parts at it, which can get expensive quickly.
Thread Starter
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Intermediate
Joined: Jun 2016
Posts: 47
Likes: 1
From: las vegas, nv
Diverrick, if u were here id give u a Bear Hug, I cant thank you enough. Did as u said one fuse at a time, got to lights fuse and problem was gone, kept riding for almost 3 hours with no problems. Will re-wire lights tomorrow. Again, Thank You Brother.