Using PV vs a Factory Flash
Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
Using PV vs a Factory Flash
2006 FLHPI upgraded with high flow air filter, 2into1 V&H exhaust,upgraded from an 88 to 98, and feuling cams.
I have been using the Powervision auto tune consistently since the upgrades and its running fine but I only get 30.2 mpg. If thats all Im going to get with my setup and periodic heavy right hand then fine but Im wondering if I should have had Harley flash the bike with a different map after the upgrades.
Should I have them do that or is the powervision enough? If they do flash it will it cause issues with how the bike runs? I am not tech savvy with air fuel ratios and all that jazz so if it were to make the bike run like a$$ I wouldnt know what to do.
I have been using the Powervision auto tune consistently since the upgrades and its running fine but I only get 30.2 mpg. If thats all Im going to get with my setup and periodic heavy right hand then fine but Im wondering if I should have had Harley flash the bike with a different map after the upgrades.
Should I have them do that or is the powervision enough? If they do flash it will it cause issues with how the bike runs? I am not tech savvy with air fuel ratios and all that jazz so if it were to make the bike run like a$$ I wouldnt know what to do.
Road Master
Joined: Jan 2015
Posts: 894
Likes: 69
From: Ca
2006 FLHPI upgraded with high flow air filter, 2into1 V&H exhaust,upgraded from an 88 to 98, and feuling cams.
I have been using the Powervision auto tune consistently since the upgrades and its running fine but I only get 30.2 mpg. If thats all Im going to get with my setup and periodic heavy right hand then fine but Im wondering if I should have had Harley flash the bike with a different map after the upgrades.
Should I have them do that or is the powervision enough? If they do flash it will it cause issues with how the bike runs? I am not tech savvy with air fuel ratios and all that jazz so if it were to make the bike run like a$$ I wouldnt know what to do.
I have been using the Powervision auto tune consistently since the upgrades and its running fine but I only get 30.2 mpg. If thats all Im going to get with my setup and periodic heavy right hand then fine but Im wondering if I should have had Harley flash the bike with a different map after the upgrades.
Should I have them do that or is the powervision enough? If they do flash it will it cause issues with how the bike runs? I am not tech savvy with air fuel ratios and all that jazz so if it were to make the bike run like a$$ I wouldnt know what to do.
Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
I bought the powervision from Fuelmoto and they loaded a tune to start with for my upgrades.
Is 30mpg a ballpark normal for stage 3 upgrades?
Grand HDF Member
Joined: Jul 2007
Posts: 3,736
Likes: 8,516
From: Bates County MO
HD flash wouldn't do you any good, as they have no flash for your components.
Do you have 02 sensors (narrow bands/wide bands) installed? What is the AFR desired table? Cruise milage should be upper 30s to lower 40s,
Do you have 02 sensors (narrow bands/wide bands) installed? What is the AFR desired table? Cruise milage should be upper 30s to lower 40s,
Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
Thats all I know
Road Master
Joined: Jul 2010
Posts: 1,042
Likes: 86
From: Centeral Coast, California
Auto tune runs much richer than the tune itself, which is why you're getting such poor fuel mileage. You need to take the auto tune map, and flash it to your ECM, then take the PV OUT of auto tune. You should typically auto tune for 20-30 minutes, then flash the tune into your ECM. Do it all over again, and again, until you feel like you've dialed your tune in as good as you're going to. The tuner itself will tell you what the percentage is that you've corrected. Once you're auto tunes are making little to no adjustments, call it a day.That'll significantly impact your mileage on the positive side, and it will also give you a noticeably better running bike. It'll be much more efficient overall.
Go to the fuel moto website for tutorials on how to do all of this if you don't know how. It's not hard if you have the ability to focus on concentrate, and it does require some of that because there's more than two steps to follow in the process. It works well though.
Good luck!
Go to the fuel moto website for tutorials on how to do all of this if you don't know how. It's not hard if you have the ability to focus on concentrate, and it does require some of that because there's more than two steps to follow in the process. It works well though.
Good luck!
Last edited by gipper; May 7, 2018 at 11:51 AM.
Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
Auto tune runs much richer than the tune itself, which is why you're getting such poor fuel mileage. You need to take the auto tune map, and flash it to your ECM, then take the PV OUT of auto tune. That'll significantly impact your mileage on the positive side, and it will also give you a noticeably better running bike. It'll be much more efficient overall.
Go to the fuel moto website for tutorials on how to do all of this if you don't know how. It's not hard if you have the ability to focus on concentrate, and it does require some of that because there's more than two steps to follow in the process. It works well though.
Good luck!
Go to the fuel moto website for tutorials on how to do all of this if you don't know how. It's not hard if you have the ability to focus on concentrate, and it does require some of that because there's more than two steps to follow in the process. It works well though.
Good luck!
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Road Master
Joined: Jul 2010
Posts: 1,042
Likes: 86
From: Centeral Coast, California
Don't start the tune again right away. Ride it a while OUT of auto tune. See how it feels. Wait a week or so, then run one again for 20-30 minutes and flash that tune....but once flashed keep it out of auto tune until you've noticed spots that feel flat in your throttle response. If you feel a really flat spot, run one again focusing on logging as much data as you can in THAT area of speed and RPM where you felt the flat spot. Flash, and go. It seems far more complicated than it is, but your first mistake is keeping it in auto tune.
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Thread Starter
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Tourer
Joined: Sep 2016
Posts: 424
Likes: 32
From: Ohio
Don't start the tune again right away. Ride it a while OUT of auto tune. See how it feels. Wait a week or so, then run one again for 20-30 minutes and flash that tune....but once flashed keep it out of auto tune until you've noticed spots that feel flat in your throttle response. If you feel a really flat spot, run one again focusing on logging as much data as you can in THAT area of speed and RPM where you felt the flat spot. Flash, and go. It seems far more complicated than it is, but your first mistake is keeping it in auto tune.
Road Master
Joined: Jul 2010
Posts: 1,042
Likes: 86
From: Centeral Coast, California
I can remember well how I felt when I was getting used to the PV. I thought it was overwhelming, but it really isn't. There are just some specific steps to take to get everything dialed in as much as the PV is capable of (which is fairly extensive even for the layman, and extremely extensive for a pro), and there are some do's and don'ts. Have fun with it, and study/play with it as much as your patience allows. It's a pretty cool tool, and can do FAR more than the layman is able to tap into, yet it has its simple side for guys like us. That's what makes it a really cool tool.