Power Vision Information Thread
Cruiser
Joined: Mar 2009
Posts: 228
Likes: 0
From: Texas
The ECM uses VE as the primary factor in determining fuel delivery as it represents the "predicted" airflow model. If you raise VE values the ECM delivers more fuel if you lower it less fuel is delivered. If you have a closed loop calibration the O2 sensors are used as a control function to maintain the mixture set in the AFR/Lambda table, if you set the VE higher than required the O2 integrator will move the mixture to meet this target as it toggles from rich/lean, it will then eventually store an adaptive fuel value in block learn in the background of the calibration
Does it work this way even if the Adaptive Control is turned OFF. The reason that I ask is bacause all of my tunes (H-D Stage 1 download, FuelMoto tune and DJ tune) all came to me, or at least show up in WinPV with the Adaptive Fuel OFF (set to 0 instead of 1). I assume this means the ECM will learn as it goes, but will not retain what it learns from start-up to start up. What is the logic behind having the Adaptive Fuel function turned OFF or is it an error that I need to correct in my tunes?
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Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Stage IV
Joined: Sep 2011
Posts: 4
Likes: 0
From: Norway
There is a lot of discussion on the Net about what the official stage one map really is doing. To really find out I would like to have a look at a stage one map for a 96"
twin cam in power vision format (.pvt). Anyone here who has got one?
(People who started using PV on a a bike already mapped to stage one and have
backed up as stock and made a "copy of stock")
A screendump of the VE-tables in a stage one map would be an useful alternative.
(I am not trying to save money, I just want to see the facts, and suddenly
realized that we PV users have a way to find the truth...)
twin cam in power vision format (.pvt). Anyone here who has got one?
(People who started using PV on a a bike already mapped to stage one and have
backed up as stock and made a "copy of stock")
A screendump of the VE-tables in a stage one map would be an useful alternative.
(I am not trying to save money, I just want to see the facts, and suddenly
realized that we PV users have a way to find the truth...)
Cruiser
Joined: Mar 2009
Posts: 228
Likes: 0
From: Texas
Adaptive control needs to be turned on for block learn to happen, however Sportster cals are a bit different as Adaptive control in the factory, Fuel Moto and Dynojet cals is defaulted to off in WinPV when Adaptive control is actually active. What is likely going on is the address is in a different place in the code in Sportster cals and this is not picked up
Road Master
Joined: Mar 2007
Posts: 1,177
Likes: 23
Dave
On your screen, pick Front Adaptive Fuel and rear Adaptive Fuel (I may be slightly off on the name)
Now go ride the bike and see if that number starts changing a few percent as you ride. Note that if you reset your fuel trims on a fresh tune load, It will take about 10 min for those numbers to show anything other than 100.
If those numbers show up as anything other than 100, adaptive learning is on.
Have fun tuning.
Beast
On your screen, pick Front Adaptive Fuel and rear Adaptive Fuel (I may be slightly off on the name)
Now go ride the bike and see if that number starts changing a few percent as you ride. Note that if you reset your fuel trims on a fresh tune load, It will take about 10 min for those numbers to show anything other than 100.
If those numbers show up as anything other than 100, adaptive learning is on.
Have fun tuning.
Beast
There is very little difference between level 9 and 44 strategies, nothing that is actually exposed in the tables or will make a difference in the end results. Level 9 can be used in 2010-2012 Touring models while level 44 is on applicable to 2011-2012 Touring models
Advanced
Joined: Apr 2011
Posts: 60
Likes: 0
From: Clovis ca.
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Cruiser
Joined: Nov 2010
Posts: 124
Likes: 0
From: Morganton, NC
I have a 2011 96 ci with a stage II that is now a 103 w/255 cams. I have a level 44 tune that was downloaded with the stage II install. I also have a level 9 tune that you sent me with the PV. I know you said that there is little difference, but is one even a little better than the other? Which one should I develop/improve going forward? Can I copy/paste the VE/Spark Tables directly from the level 9 to the level 44?
Should adaptive control be on or off during tuning runs?
Thanks
Jamie,
I have a 2011 96 ci with a stage II that is now a 103 w/255 cams. I have a level 44 tune that was downloaded with the stage II install. I also have a level 9 tune that you sent me with the PV. I know you said that there is little difference, but is one even a little better than the other? Which one should I develop/improve going forward? Can I copy/paste the VE/Spark Tables directly from the level 9 to the level 44?
Should adaptive control be on or off during tuning runs?
Thanks
I have a 2011 96 ci with a stage II that is now a 103 w/255 cams. I have a level 44 tune that was downloaded with the stage II install. I also have a level 9 tune that you sent me with the PV. I know you said that there is little difference, but is one even a little better than the other? Which one should I develop/improve going forward? Can I copy/paste the VE/Spark Tables directly from the level 9 to the level 44?
Should adaptive control be on or off during tuning runs?
Thanks
When Log tuning you will want adaptive control on