Power Vision Information Thread
Road Master
Joined: Jun 2006
Posts: 871
Likes: 7
From: Manchester, NH
I don't think miles driven has anything to do with having a successful autotuning session. It's all about the quality, consistency and number of hits per cell that will help dial in the VE. You also have to do more then one tuning session. It gets to the point that you should be comparing the % of Delta between generated tunes. I've heard 5% as being minimally acceptable. I got mine to 2%. After I get my tune to this point, I will append multiple datalogging sessions to the same file (the more data the better) to be better representative of my style of riding, then generate a new tune. Is it overkill - perhaps - but I believe that getting the VE dialed in is key to the rest of the tune coming together.
Faster is not always better.
Faster is not always better.
Tourer
Joined: May 2012
Posts: 460
Likes: 4
From: New York
I don't think miles driven has anything to do with having a successful autotuning session. It's all about the quality, consistency and number of hits per cell that will help dial in the VE. You also have to do more then one tuning session. It gets to the point that you should be comparing the % of Delta between generated tunes. I've heard 5% as being minimally acceptable. I got mine to 2%. After I get my tune to this point, I will append multiple datalogging sessions to the same file (the more data the better) to be better representative of my style of riding, then generate a new tune. Is it overkill - perhaps - but I believe that getting the VE dialed in is key to the rest of the tune coming together.
Faster is not always better.
Faster is not always better.
Road Master
Joined: Jun 2006
Posts: 871
Likes: 7
From: Manchester, NH
No. When you start you autotune you should see a spreadsheet sort of table with MAP at the top and RPM on the left side. Those little cells will have a number in them when it records a hit. When the cell changes color it is telling you that the number of hits established in setup has been reached. I believe the default value is 5. Not really a whole lot. The cell maxes out at 99. I'm doing this from memory so I hope it's accurate. I think green means none, yellow has a few, and red means the set value has been reached. Anyone done this recently that can refresh me on the color code?
Road Master
Joined: Feb 2007
Posts: 1,205
Likes: 0
From: Arizona
Thanks...
Road Captain
Joined: Nov 2012
Posts: 569
Likes: 0
From: USA
I accidently found this site when googling for info on the DJ PV. I just started using the PV so I have many questions that I hope I can find answers to here. Hopefully I'll learn enough to give back one day.
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Tourer
Joined: May 2012
Posts: 460
Likes: 4
From: New York
I accidently found this site when googling for info on the DJ PV. I just started using the PV so I have many questions that I hope I can find answers to here. Hopefully I'll learn enough to give back one day.
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Road Captain
Joined: Nov 2012
Posts: 569
Likes: 0
From: USA
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
Road Captain
Joined: Jun 2006
Posts: 580
Likes: 0
From: Colorado
I accidently found this site when googling for info on the DJ PV. I just started using the PV so I have many questions that I hope I can find answers to here. Hopefully I'll learn enough to give back one day.
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Cruiser
Joined: Jun 2006
Posts: 129
Likes: 0
From: Houston, Texas
I accidently found this site when googling for info on the DJ PV. I just started using the PV so I have many questions that I hope I can find answers to here. Hopefully I'll learn enough to give back one day.
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?
Anyway, received the unit from Fuel Moto. It was supposed to have a cal loaded that matched my bike. Wow did they miss the boat on this one. The bike is pretty much unrideable. It shakes, shutters, spits, pops, and backfires insanely. Not sure what they sent but the bike sure doesn't like it.
My first question is how to attack the decel backfiring. Now this isn't just popping, it's backfiring. I lowered the decel enleanment some but that didn't help much. Also dropped the AFR in the 20 map column to 14.0 from 750 to 4000, still backfiring.
How low can the decel enleanment cells be lowered? As of now I have them set at .70 to .29, top to bottom. Should I keep going lower? Or should I toss a boatload of fuel at it in the 20 kpa column?