Power Vision Information Thread
Cruiser
Joined: Jul 2015
Posts: 101
Likes: 2
From: Columbus, Ohio, USA
Thanks
Glen
Last edited by adkg12; May 17, 2016 at 08:19 AM. Reason: Image didnt attach.
Cruiser
Joined: Jul 2015
Posts: 101
Likes: 2
From: Columbus, Ohio, USA
Here is the log from last nights ride after adjusting with Mytune.
From what I have read, that DCvsMxRPM "looks" pretty good.. no?
Thanks
Glen
From what I have read, that DCvsMxRPM "looks" pretty good.. no?
Thanks
Glen
Last edited by adkg12; May 17, 2016 at 08:20 AM. Reason: Image didnt attach. User error.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
Duty cycle is the total usage of each injector 0 - 100%. Unless you have some large build or a bad injector (which would be shown in other areas) then you're duty cycles should be fine and well within spec.
Tourer
Joined: Apr 2012
Posts: 482
Likes: 30
From: Michigan/Florida
If your VE and VE New are exactly the same then I'd question if you are actually running in closed loop. It seems very unlikely to me that there would be no differences at all as dynamic as the conditions are in a running engine. Ambient temp, barometric pressure, condition of the fuel and a bunch of other variables all contribute to what your VE's look like to the ECM.
Cruiser
Joined: Jul 2015
Posts: 101
Likes: 2
From: Columbus, Ohio, USA
I saw your post when you first put it up and figured one of the gurus might answer with a comment. I hate it when nobody does, so I'll try to at least comment... (not a guru).
If your VE and VE New are exactly the same then I'd question if you are actually running in closed loop. It seems very unlikely to me that there would be no differences at all as dynamic as the conditions are in a running engine. Ambient temp, barometric pressure, condition of the fuel and a bunch of other variables all contribute to what your VE's look like to the ECM.
If your VE and VE New are exactly the same then I'd question if you are actually running in closed loop. It seems very unlikely to me that there would be no differences at all as dynamic as the conditions are in a running engine. Ambient temp, barometric pressure, condition of the fuel and a bunch of other variables all contribute to what your VE's look like to the ECM.
And from my understanding as well, DutyCycle X MAPxRPM should produce a tight scatter map on a "properly tuned" bike.. no?
Thanks
Glen
Road Master
Joined: Aug 2014
Posts: 1,035
Likes: 39
From: Olive & Oak
This is kinda what I was thinking as well. But I didnt want to look anymore lost than I currently do! And this would explain why now matter how many times I log, or Autotune, theres always going to be corrections logged.. its just those corrections "should" be smaller...If I understand this correctly..
And from my understanding as well, DutyCycle X MAPxRPM should produce a tight scatter map on a "properly tuned" bike.. no?
Thanks
Glen
And from my understanding as well, DutyCycle X MAPxRPM should produce a tight scatter map on a "properly tuned" bike.. no?
Thanks
Glen
VE and VE New have nothing to do with whether you are running in closed or open loop.
Yes there will always be corrections between VE and VE new due to changing atmospheric conditions. If atmospheric conditions remain relativity constant then you should be able to correct VE changes to less than 5% with relative ease.
Road Master
Joined: Aug 2014
Posts: 1,035
Likes: 39
From: Olive & Oak
If by "that section in the middle" you are referring to the red dots, that just shows a lot of hits in that MAP RPM area.
Cruiser
Joined: Jul 2015
Posts: 101
Likes: 2
From: Columbus, Ohio, USA
Thanks
Glen
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Intermediate
Joined: Feb 2015
Posts: 31
Likes: 1
From: Hernando, MS
I saw your post when you first put it up and figured one of the gurus might answer with a comment. I hate it when nobody does, so I'll try to at least comment... (not a guru).
If your VE and VE New are exactly the same then I'd question if you are actually running in closed loop. It seems very unlikely to me that there would be no differences at all as dynamic as the conditions are in a running engine. Ambient temp, barometric pressure, condition of the fuel and a bunch of other variables all contribute to what your VE's look like to the ECM.
If your VE and VE New are exactly the same then I'd question if you are actually running in closed loop. It seems very unlikely to me that there would be no differences at all as dynamic as the conditions are in a running engine. Ambient temp, barometric pressure, condition of the fuel and a bunch of other variables all contribute to what your VE's look like to the ECM.
Road Master
Joined: Aug 2014
Posts: 1,035
Likes: 39
From: Olive & Oak
After your AutoTune sessions, are you exporting learned values and then flashing that tune to the ECM? If not you aren't changing anything.