No Device: HD/Delphi EFI Tuning - EITMS
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Road Warrior
Joined: Jun 2015
Posts: 1,325
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From: Edinburgh UK
HD/Delphi EFI Tuning - EITMS
From Steve's HD/Delphi tuning basics thread, he observed in an example log file...
This part of the log was actually EITMS kicking in, starting from line 13541.
Which was a good and rather obvious question. I thought that the rear cylinder was cut, but I didn't know how.
When EITMS kicks in the engine certainly feels and sounds very different and from the gauges I can see idle rise about 100rpm or so, the Rear O2 voltage drops to 0v and the idle is actually smoother
Steve mentioned the Integrators but looking at the log, I'm not sure if they are relevant here, it looks as if the ECU has increased the injector plus widths directly.
The other obvious question, if the rear cylinder is supposed to be dead, and sat on the bike it certainly feels like that is the case, where is all that fuel going? we're not washing the rear cylinder down are we?
When EITMS kicks in the engine certainly feels and sounds very different and from the gauges I can see idle rise about 100rpm or so, the Rear O2 voltage drops to 0v and the idle is actually smoother
Steve mentioned the Integrators but looking at the log, I'm not sure if they are relevant here, it looks as if the ECU has increased the injector plus widths directly.
The other obvious question, if the rear cylinder is supposed to be dead, and sat on the bike it certainly feels like that is the case, where is all that fuel going? we're not washing the rear cylinder down are we?
HD EFI Guru
Joined: Jan 2008
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PV maybe showing calculated fuel and Not delivered fuel, but I do not know for sure, what they are doing. My point was to make you all aware that things shown in a data log doesn't mean they are true or correct. When trying to use third party software it has to assume everything in the log is true, so this presents a very obvious problem to third party software.
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Road Warrior
Joined: Jun 2015
Posts: 1,325
Likes: 140
From: Edinburgh UK
Thanks Steve, absolutely get what you are saying about logs and what they tell us ...or not 
can you tell us if the HD/Delphi strategy for EITMS is to actually cut the fuel to the rear cylinder (regardless of what logs say or not) or if that may be replaced by the third party tuning device/map?
can you tell us if the HD/Delphi strategy for EITMS is to actually cut the fuel to the rear cylinder (regardless of what logs say or not) or if that may be replaced by the third party tuning device/map?
Extreme HDF Member
Joined: Aug 2013
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From: Somewhere SW
Could you imagine what it would smell like if the cylinder were being washed down by fuel?
Despite what the log says it's quite obvious the fuel is turned off.
Which makes me wonder...
If I were to set the EITMS on temp for lets say 200 F how much would I save on fuel at stoplights?
Despite what the log says it's quite obvious the fuel is turned off.
Which makes me wonder...
If I were to set the EITMS on temp for lets say 200 F how much would I save on fuel at stoplights?
HD EFI Guru
Joined: Jan 2008
Posts: 4,489
Likes: 4,776
Thanks Steve, absolutely get what you are saying about logs and what they tell us ...or not can you tell us if the HD/Delphi strategy for EITMS is to actually cut the fuel to the rear cylinder (regardless of what logs say or not) or if that may be replaced by the third party tuning device/map?
can you tell us if the HD/Delphi strategy for EITMS is to actually cut the fuel to the rear cylinder (regardless of what logs say or not) or if that may be replaced by the third party tuning device/map?
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ShadowMonster
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Jan 17, 2013 05:23 PM
