The Next Generation
Of Fuel Management

Fuelpak is the most straightforward and cost-effective fuel management solution for custom-tailored mapping on Delphi equipped Harley-Davidson motorcycles.


What map do I choose if I do not see my exhaust listed?

Answer: When a map for your setup is not available, it is best to select a similar exhaust system and AutoTune that map to tune it in specifically for your setup.

Do I have to use my phone to tune the bike?

Answer: Almost any device running iOS 6.0+ or Android 4.0+ that has Bluetooth connectivity and a good internet connection can be used. There is no information stored on the smartphone, so you can borrow a phone and not worry about losing settings.

How do I return my bike to its original calibration?

Answer: if you should ever want or need to go back to the original calibration you had before installing FP3, do the following: from the main menu, press “view/edit maps” and press slot zero (reads "stock setting – read only”). A message will pop up asking if you want to flash this map to your bike – press continue and follow the instructions.

I don’t see any maps for my bike. What is wrong?

Answer: Most likely, you have a poor internet connection and the app timed out before the server responded. Press the back arrow and try again. If the problem persists, check your internet connection. You may want to switch to wifi or switch off of wifi depending on your current state.

How long should the “Sending Stock to Server” process take?

Answer: The process of sending your stock map to the server should only take a few seconds. If you find yourself stuck here for more than a minute or two, you should kill the app, cycle power on your bike, and try again.

I am having server issues. What can I do?

· If you are using wifi, try turning off wifi and using cell service.
· If you are using cellular service, try a wifi connection.
· Note the signal strength of the service you are using. Just because you can make a phone call does not mean that you will be able to access the Vance & Hines server. In rural areas, you may need to seek out better internet service.

How do I make sure I have the latest OS (Operating System) on my device?

· iOS devices go to Settings>General>Softare Update.
· Android devices go to Settings>About Phone>Software Update.

How do I make sure I have the latest FP3 application version?

Answer: Check the "My Apps" area of your device and see if any updates are listed for your device. Updates may not immediately show on your device. This is dependent on the configuration of your devices settings to update applications over Wifi connection or cellular connections.

How do I get the app?

Answer: Go to the App Store (iOS) or Google Play (Android) and search for “FP3”. You should see the Vance & Hines FP3 app. Select and install the app.

How much does the app cost?

Answer: The app is completely free.

Back to top

Do I need to autotune my map?

Answer: Most likely you will not need to use the autotune feature. The factory fuel trims will automatically adjust for typical variations. Because our maps are all dyno tuned with your engine/pipe combination and a high flow air intake. It is very likely that you will not need to perform any other task than downloading the map and programming it into your bike. Some exceptions include: you have pipes that are VERY different than something offered by Vance & Hines; you live outside North America and therefore have different fuels than what are available at our facility.

How do I autotune?

Answer: To autotune your map, you must first select a map for a pipe similar to yours and program it into your bike. Next select autotune from the menu and “start” the process. This will make changes to your map and flash those into the bike. Now go out and ride. The more varied types of riding you can do (stop and go, steady state, uphill, downhill, low rpm, high rpm, low and high throttle angles, etc.) the better. It is possible to get a decent tune in as little as 20 minutes, but we recommend you run through one full tank of gas before “finishing”. Once you press the “finish autotune” button, your bike will be reflashed with the new settings and you are done.

How long should I leave autotune on?

Answer: It is possible to get a decent tune in as little as 20 minutes, but we recommend you run through one full tank of gas before “finishing”.

Does my phone need to be connected while autotuning?

Answer: No. The FP3 hardware will need to be plugged in because the autotune process is contained within that unit. The phone is only used to activate the processes or display your progress.

What do the colored squares mean?

The entire grid is all the possible locations (a combination of rpm and throttle angle) you can tune. An orange square is a location that is partially learned. A green square is a location that is learned.

Back to top

Will the Fuelpak FP3 work on my bike?

Answer: Fuelpak FP3 is only compatible with select CANBUS systems on Harley Davidson motorcycles as this time.

What is the warranty on the Fuelpak FP3?

Answer: The warranty for Fuelpak FP3 is 90 days.

How many motorcycles can I tune with my FP3?

Answer: Each bike you tune will require a different FP3. The FP3 will “marry” to your VIN when you flash a map to it the first time. After that, the FP3 will not be able to flash any other bike. You can still use it to read diagnostic trouble codes or display live data on any CAN bus equipped Harley.

How are your maps made?

Answer: All of our maps are made on a dyno and verified on the road with the engine/pipe combination listed. Every map goes through a full tuning process and is reviewed by calibration engineers before being uploaded to the Vance & Hines server.

How does the FP3 work? What is the process?

Answer: You will have to install the app on your phone and purchase an FP3 Fuelpak. The FP3 Fuelpak plugs into the 6-pin diagnostic port on your Harley Davidson motorcycle. Power up your bike and connect your phone to the FP3 via a Bluetooth connection (iOS: follow the help screen on your app; Android: the app will guide you through the process). Now “search for a map” and select the map which best fits the bike/engine/pipe combination you have. Program your map to your bike, that's it. Most customers complete the whole process in about 10 minutes. We encourage you to download the app and try the process in demo mode.

How long does this process take?

Answer: From the time you first pair your phone to the FP3 to being completely done usually takes about 10 minutes or less. If you need to do a firmware update, that could add another 5 minutes or so.

I don’t see my exhaust listed; what map should I use?

Answer: We have maps for every Vance & Hines exhaust system, if you have an exhaust system other than Vance & Hines, choose a map for a pipe similar to yours. Look at the routing of the pipes to make that determination (two pipes merging into one muffler, two pipes totally separate leading to separate mufflers, two pipes leading to separate mufflers with a crossover pipe between them, etc.). Once you have flashed that map, try it out for a while (about a full tank of gas is good). The fuel trims will adjust for most differences. If it doesn’t meet your expectations, you can try the autotune function.

How do I know if I need to perform an update?

Answer: Each time the app is started and you go through the system status screen (where you can choose demo mode), the app will check for available updates. If updates are available, the app will guide you through the update process.

Do I have to perform a firmware upgrade if one is available?

Yes. If an update is available, your app will not allow you to proceed without performing the update. It is important that your FP3 always have the most up-to-date firmware.

Back to top

Does the Fuelpak FP3 have to stay plugged into the motorcycle or can it be taken off?

Answer: The Fuelpak FP3 may be removed from the motorcycle once the map has been flashed to the ECM. For Live Sensor Data and Diagnostic Code reading or any other map editing or viewing Android & Apple the Fuelpak FP3 must be plugged in.

What if I do not have a smartphone?

Answer: The Fuelpak FP3 is not married to a specific smartphone or device. There are many shops and dealers that will be able to assist you with using a Fuelpak FP3. Utilizing their smartphone (Android or Apple).

Back to top

Is the Fuelpak FP3 married to the motorcycle or can I use it on another motorcycle?

Answer: The first time the Fuelpak FP3 is linked to the bike and a map has been flashed the unit is will then be "married" to that VIN number. You can flash that VIN many, many times. But only that VIN.

Can I AutoTune any setup?

Answer: There are limitations to AutoTune capabilities. AutoTune has the capability of tuning in nearly any exhaust and intake combination as well as fuel type on a stock engine. However, for modified motors with radical/high lift cams, it will not be able to tune.

My app says I need to perform a firmware upgrade; what does that mean?

Answer: The Vance & Hines engineers are constantly improving the FP3 and will release updates as necessary. These updates may improve the speed of the process, the quality of the flashing, and features, or fix bugs.

How long does a firmware upgrade take?

Answer: The firmware upgrade process usually takes about 7 minutes or less. If you have a poor internet connection, it could take longer.

Back to top


General Topics
I have a Softail with a 200mm rear tire, which Fuelpak do I use?

· 07-10 FATBOY
01-06 FATBOY
· 05-10 DELUXE
· 01-10 HERITAGE
· 01-07 DUECE

What is the price of the Fuelpak LCD?

Answer: The Fuelpak LCD MSRP is $289.95

What is the price of the Fuelpak LED?

Answer: The Fuelpak LED MSRP is $289.95

Where can I get a copy of the application chart?

Answer: If you want a pdf copy of the application chart, you can lookup your map here.

I have the SE Pro Race Tuner; will the Fuelpak work with that?

Answer: No, the Fuelpak is not compatible with the race tuner. Correct Fuelpak mapping assumes the Fuelpak knows what the factory computer is trying to do at all times and adjusts for lean or rich areas. The settings in the Race Tuner would be fully custom and the Fuelpak would not be able to know what areas are now too lean or too rich. If you already have the Race Tuner, you should take your bike back to the dealer for a re-mapping dyno session. A competent dyno operator should be able to dial in you Race Tuner for any changes you make.

How do I adjust the idle speed with my Fuelpak?

Answer: The idle speed is controlled by the factory ECM. The Fuelpak can’t increase or decrease the idle speed.

My Fuelpak is not a version 12; can I have it upgraded?

Answer: For $29.95 plus shipping, you can have your Fuelpak upgraded to the version 12 software. Typical turn around time is 1-2 days. If you want to upgrade your Fuelpak software, call us at (562) 921-0071 to get an RA number and shipping address.

I don’t understand how to input my map.

Answer: Visit the Fuelpak Videos page to find Video Tutorials for your product.

How do I find the map I need to put into the Fuelpak?

Answer: If you want a pdf copy of the application chart, you can lookup your map here.

What do the modes control?

Answer: We do not release what each of the modes control. If you think you have a rideability issue and want to adjust the map, call one of our techs and we can help you.

Back to top

Where can I get a copy of the installation instructions?

Answer: Follow this link to find copies of all the installation instructions.

Why should I install a high flow air filter?

Answer: Adding a high flow air filter to your freer flowing exhaust will allow you to realize the full potential of your bike.

Why should I install a high flow air filter?

Answer: Adding a high flow air filter to your freer flowing exhaust will allow you to realize the full potential of your bike.

Will the Fuelpak void my warranty?

Answer: Some dealers will still honor the factory warranty after a Fuelpak installation, but some will not. It is up to your dealer. Often the dealer will honor the warranty if you pay them to do the Fuelpak installation.

What is the warranty on the Fuelpak?

Answer: The Fuelpak is warranted to be free of manufacturing defects for a period of 90 days after the initial purchase date. This warranty is limited to the repair or replacement of the Fuelpak and is not extended to installation charges

My bike is not running right, my Fuelpak does not seem to be working correctly. Is there anything I can check before calling?

Answer: Modes 21 and 22 are diagnostic modes. Mode 21 shows you the current throttle position. The value at mode 21 should read 0 with your hand off the throttle and immediately start scrolling up (1,2,3…) as you twist the throttle open and should climb all the way to 99 at wide open throttle. If it does not do this, go to mode 19 and roll the throttle all the way open then roll it all the way shut by hand, do not let it shut by itself. Go back to mode 21 and re-verify. Mode 22 shows the current engine rpm. Start the engine and go to mode 22. A warm engine will idle between 900-1200 rpm which should show up as a 9-12 in mode 22. the rpm reading should follow the engine rpm as it goes up and down.

My settings in my paperwork are different from the internet, which one is right?

Answer: Always trust the internet settings. They are the most up-to-date. We do occasionally make adjustments to the maps and those adjustments are reflected in the map values on the internet.

My bike feels like it is running out of gas when I am approaching a stop.

Answer: Increase the value in mode 23 to 25 and try that. This will probably lead to some decel popping; it will be a trade off.

I checked my plugs and they are very white; is my bike running lean?

Answer: EFI is very efficient and that makes it very difficult to read the plugs. They will not color the same way as with a carbureted engine does. If you are not having rideability issues it is unlikely you are running too lean.

My pipe “pops” when coming to a stop, what can I do to eliminate that?

Answer: The Fuelpak has a function which shuts off the fuel when decelerating. No fuel=no pop. Obviously the Fuelpak has to turn the fuel back on at some point or the engine would die. Not all popping can be eliminated, but this feature does lessen it. Mode 23 controls the rpm where the fuel is turned back on. Try lowering this by one number and see if it helps you. If you have done this and have gotten to 14 or your bike is stalling when coming to a stop, that is all you can do and you will not be able to lessen the popping without changing the pipes or installing quieter baffles. The popping is not harmful, just annoying.

Back to top

What is the difference between the “G” model and the standard models?

Answer: The G model Fuelpaks (ie. 61001G) are specific to the state of California. They have special software which locks out fuel tuning in areas controlled by emissions testing. This limited tuning allows the Fuelpak to remain in compliance with Ca ARB regulations and is the only version legal in the state of California on public roads.

What is an “EX” model?

Answer: The EX designation refers to our G models special to California. See the paragraph on G models.

I can't program in my map because the numbers won’t go that high. I tried to enter my Fuelpak map, but the numbers wont go high enough; what do I do?

Answer: Most likely you have an older version of the Fuelpak. You can view the version number of the internal software in mode 20. if you have a version 10 or 11, you can have it upgraded to version 12. See the version 12 upgrade question.

Back to top