free shipping

Power Vision FAQs

Device Overview FAQs

Power Vision Accessories FAQs

Power Vision Tune (Map) FAQs

Software Related FAQs


Performance FAQs

Device Overview FAQs

What is the Power Vision? Back to Top

The Power Vision is a new flash tuning solution that can meet the needs of any Delphi ECM equipped Fuel Injected Harley-Davidson. Whether you are just looking to improve the performance and fuel economy of your completely stock motorcycle, or you are running an all out drag bike the Power Vision is the most flexible and powerful flash tuner in the world. The Power Vision uses reflash technology to change the parameters inside the stock ECM (Engine Control Module) that affects the way the engine will run. It can be as simple as using one of Dynojet’s pre-configured calibrations, or you can create a custom tune using the WinPV software.

Which motorycles can I use with the Dynojet Power Vision Back to Top

The Power Vision is intended for Harley-Davidson Fuel Injected Motorcycles with a Delphi ECM. This includes the 2001-Present Softails, 2002-Present Touring, 2002-Present V-Rod, 2004-Present Dyna and 2007-Present Sportsters. The Power Vision offers the latest flash tuning technology, data logging, and other industry exclusive features for today’s high performance EFI tuning market.

What do I gain? Back to Top

The Power Vision will deliver a calibration (tune) to your Harley’s ECM that contains the proper data for optimized performance and peak efficiency throughout the operation range. You can mount the Power Vision on your bike and display the J1850 data (stuff like knock, engine temp, spark advance, inlet air temp, etc) on one of many gauge screens, and each gauge has a user configurable alarm to warm you in the event that a parameter is nearing a potentially unsafe value. If you have a Dynojet Wide Band 2 or Auto Tune system, you can simply plug it in and add insightful wide band data to the channel list. Power Vision also allows you to log the data in the event you’d like to analyze this vital information after your ride is complete. You also have the ability to check and clear ECM DTC’s (diagnostic trouble codes), and reset adaptive learning.

Do I need a computer? Back to Top

No, a computer will not be needed to load one of the pre-configured calibrations, or a copy of the original calibration into your motorcycle. You can even edit the tune directly on the device without touching a computer. The list of available parameters to edit directly on the Power Vision is limited, but it’s extremely handy for in-field calibration changes. If you want to make adjustments to the calibration beyond what can be done directly on the Power Vision, or if you are an experienced tuner looking to maximize the effectiveness of your tunes, then you will need a computer with Microsoft Windows operating system (XP, Vista, or 7) in order to use the WinPV tuning application (which is included free).

How does the Power Vision connect to my computer? Back to Top

The Power Vision connects to your computer using the included, standard USB to Mini USB cable.

How many motorcycles can I use the Power Vision on? Back to Top

The Power Vision will only be able to tune one motorcycle (flash it as many times as you like). It can be connected to other motorcycles to monitor / log data, check and clear DTC’s (diagnostic trouble codes), and reset adaptive learning.

Does it come with a mount? Back to Top

No, as everyones’ mounting needs will be different. The Power Vision uses the AMPS four bolt pattern, so it can be mounted using many of the mounting solutions readily available.

We have partnered with Techmount to ensure that you can buy the mount that fits your needs. Please follow the banner link below to access the Techmount website.

Does the Power Vision display need to stay on the bike? Back to Top

No. You can remove the display and your bike will run with the last tune that was sent to the ECM.

Is it weatherproof? Back to Top

The Power Vision is weather resistant. We recommend removing the Power Vision before washing the motorcycle.

What are the unit dimensions and weight? Back to Top

Dimensions: 2.83L X 3.97W X .84H (click on link for visual)

Where do I buy it? Back to Top

Power Vision Accessories FAQs

How long do I need to run AutoTune? Back to Top

AutoTune needs to run long enough to gather information to make adjustments (20 minutes to 10 hours). You need to ride the bike long enough to hit all of the areas you plan to ever ride the bike (rpm & throttle position). Once you have run the bike awhile, you should have gathered enough data to adjust your tune. It would be better to make multiple short rides, stopping to apply the AutoTune information; than it would be to make one long ride. Each AutoTune session should be built on the last session.

What is QuickTune? Back to Top

QuickTune is a simple way to make adjustments to the tune in your bike without using a personal computer. In QuickTune you can make adjustments to a number of settings, common ones are idle speed, rev limit, fuel and ignition timing. QuickTune can be found on the Power Vision under Program Vehicle.

How many times should I run AutoTune? Back to Top

This will vary depending on how close the base tune is to your bike setup, and whether you are using AutoTune Pro or Basic. A tune created with exactly the same components, should only need 2-3 AutoTune sessions with Pro or Basic. A tune that was created with only similar components would need more AutoTune sessions. AutoTune Basic will need more sessions than Pro because the stock narrowband o2 sensors used in Basic will only “read” a fairly small range, about 14.2 – 15.2. AFR values outside of this range will only show as rich or lean. AutoTune Pro, using wideband o2 sensors, will see AFR values between about 10.0 – 18.0. Therefore it takes less sessions to make the needed adjustments.

If I want to use the Auto Tune Pro method, what do I need to buy besides the Power Vision? Back to Top

The kits you need are technically the same as the AT-100 that's used with our popular Power Commander, but these new Power Vision specific kits include a longer CAN cable to connect the Auto Tune to the Power Vision, and also a Y-splitter to make power / communication a plug-n-play affair.

You’ll need one of these kits:

What is the difference between AutoTune Basic and Pro? Back to Top

AutoTune Basic: (Only works on bikes with factory O2 sensors) Uses the bike’s stock narrowband o2 sensors Works well as long as the base tune is fairly close to the bike setup Works well for completely stock or lightly modified bikes No need to drill holes and weld o2 bungs in head pipes AutoTune Pro: Uses Dynojet’s AT module and two wideband o2 sensors Works well with any base tune Works well for highly modified bikes Need to have two 18mm Dynojet o2 sensors in the exhaust

Why can’t I get 12mm wideband o2 sensors for my AutoTune kit? Back to Top

Dynojet supplies industry standard Bosch 18mm wideband o2 sensors in our AutoTune kits. 12mm wideband o2 sensors are not readily available. To use the AutoTune module, 18mm bungs need to be welded into the headpipes and the 18mm sensors need to be inserted into these bungs. The stock 12mm o2 sensors can be left in the exhaust pipe for use after the Autotuning is complete. Dynojet has tested a few of the 12mm to 18mm adapters and found them to not work correctly.

Do I pay for additional software updates? Back to Top

No, the WinPV software will be updated automatically at no charge when you run the update client on your computer.

Power Vision Tune (Map) FAQs

Where do I get tunes? Back to Top

There are three types of tunes that you can deliver to your bike: pre-configured tunes (loaded on the device from Dynojet), custom tunes (loaded or emailed to you by a custom tuner), or you can use a copy of your original (The tune file that is saved to the Power Vision when married to the ECM) tune to tweak. The Power Vision will be pre-loaded with a large selection of pre-configured calibrations for bikes with basic upgrades (intake and exhaust), as well as tunes for bikes with modified engines (increased displacement, cams, head work, etc). As new calibrations are developed, they will be automatically uploaded to the Power Vision through the update client feature of the WinPV software……Just plug in the USB cable and select “Update Client”, choose the update, and we do the rest. The Power Vision holds up to 6 tunes (any combination of the 3 types) for you to choose from at your convenience, and these can be replaced as many times as you like with updated tunes.

How do I find a tune for my bike? Back to Top

Dynojet has created a number of pre-configured tunes for various bikes; but there no way to have a perfect tune for every possible combination of aftermarket parts, or rare bikes like CVO’s. What you want to look for when selecting a tune is similar components. If the aftermarket components have similar airflow, a tune created for each would be very similar. All of the tunes we have built are located on our website, and will be on your Power Vision if the tune database is up to date. If we do not have a tune listed that is a close match for your bike because you have aftermarket cams, etc, then you can request a tune to be built for your setup. Just send an email to and list the bike and all of the modifications. We will build you a tune for the components listed and email it to you.

What if there isn’t a tune for my bike? Back to Top

Dynojet works around the clock building calibrations (tunes) for different combinations. If we don’t have a tune that a good fit for your bike; you still have options.

  • 1. Find an Authorized Power Vision Tuning Center. Power Vision Tuning Centers have been trained by Dynojet and use the latest in dynamometer technology, Air-Fuel systems, and tuning techniques to build safe, powerful tunes.
  • 2. Tune the bike yourself using the Auto Tune module and Log Tuner software.
  • 3. Obtain a Power Commander Map that most closely matches your combination, and import that map into your stock, or original calibration (only available for non-electronic throttle bikes).
How do I import a Power Commander map? Back to Top

You can import a Power Commander map to most 2007 and older bikes, and some newer than 2007 bikes. To import a map, first you need to download a Power Commander map and save it someplace you can find it. Next, you want to retrieve the original tune from the bike, and save that tune to a slot in the Power Vision. Next, connect the Power Vision to your computer, open WinPV, and then select Get Tune. Select the slot you saved the original tune. Now the tune is open in the WinPV software. Next, select File, Import Power Commander Map. Find the map you saved earlier, and Open it. The software will import the Power Commander map, and modify the Original tune with those values. Now, just Send Tune to put that modified tune on a slot of the Power Vision. Lastly, connect the Power Vision to the bike, and flash the ECM with that tune.

How do I adjust my tune? Back to Top

The best way to self modify a tune for a bike is to run AutoTune. Running AutoTune on the Power Vision will make adjustments to the tune for your bike, in your environment. Once the AutoTune has been run, if you are still having problem areas, you may want to use QuickTune to make adjustments to the tune to address the problem areas. Both AutoTune and QuickTune can be found under Program Vehicle on the Power Vision main menu.

How do I retrieve the Original tune from my bike? Back to Top

When a Power Vision is married to a bike, a copy of the tune in the ECM is saved in a hidden slot on the Power Vision called Original Tune. To retrieve this tune, with the Power Vision plugged into the bike, go to Program Vehicle/Load Tune/Load Copy/Load Copy of Original. Click Ok. Select one of the six custom slots, and save the Original tune there. When this step completes, exit out of the menu. With the Original tune in a custom slot, you can connect the Power Vision to your personal computer and use WinPV to Get Tune. The tune should be named “copy of Original tune”. Once the tune is open in WinPV, you can go to File, Save As. Give the tune a name and click Save. The default directory is My Documents/Power Vision. The Original Tune from the bike is now saved on your computer.

Can the Power Vision be tuned on a dynamometer? Back to Top

Yes, the Power Vision can be tuned by a professional using a dynamometer. The bike is strapped down on a dyno, and air fuel ratio is measured in the exhaust pipes at various rpm/loads. Fuel and ignition timing are adjusted to achieve the best running motor. This information is saved in the ECM of the motorcycle. For a list of Certified Power Vision Tuning Centers, click here.

I got a tune emailed to me, how do I load it? Back to Top

First you need to move the attached tune from the email, to a place on your computer where you can find it. The desktop would be a good place. Once you have the tune on the computer desktop, just open WinPV, and then select Open tune. Navigate to where you saved it, and select the tune that was sent. Click Open. Now the tune should be open in WinPV. With the Power Vision connected to the computer, click Send Tune. At the Custom Tune Slot, select a slot to accept the tune. Click Ok. That tune is now in the selected slot. Disconnect the Power Vision from the computer, and connect it to the bike. Key on, run switch on, on the Power Vision menu select Program Vehicle/ Load Tune/Custom Tunes. Highlight the custom slot the tune was previously saved, and press Select. Continue through the remaining steps to send the emailed tune to the ECM of the bike.

Software Related FAQs

How do I make sure my Power Vision is Up-to-date? Back to Top

The Power Vision hardware has never changed; all new features and tunes are available to every Power Vision made by running the PV Update Client. To run PV Update Client, on your computer go to Programs/Power Vision/PV Update Client. Once you open the PV Update Client, your computer and Power Vision items are compared to the latest versions on our website. If the Installed version is different than the Latest version, just select the outdated item, and click Download & Install Selected Updates. Once all of the items are updated, your Power Vision is the same as one made today!

What is the Power Vision Log Tuner software and how does it work? Back to Top

Log Tuner is an easy to use program developed by Dynojet to take data logs from your Power Vision and generate a tune specifically for your bike. You don't need to have a vast understanding of the Harley EFI system to use Log Tuner; we’ve made tuning your bike easier than ever with sem-automated fuel and spark advance corrections. Log Tuner can process data generated from the vehicle’s ECM and stock sensors (Auto Tune Basic – no extra kits or parts required), or for the best results and the ability to tune like a pro, you can add a Dynojet Auto Tune kit. The Auto Tune kit will provide data that will allow you to tune ALL the operating ranges of your bike, from idle and cruise, to higher loads and wide open throttle (Auto Tune Pro).

Does it come with the software? Back to Top

The Power-Vision does come the WinPV tuning software.

Do I pay for additional software updates? Back to Top

No, the WinPV software will be updated automatically at no charge when you run the update client on your computer.


What is Lambda? Back to Top

Lambda in reference to the Power Vision is a measurement of oxygen in the exhaust. Lambda is similar to Air Fuel Ratio, but is independent of fuel type. An AFR for pump gasoline of 14.64:1 (stoichiometric) is equivalent to lambda of 1. This is where an engine will generally produce the best fuel economy, and produce the least amount of harmful emissions. An AFR of 13:1 or lambda of .89 will generally produce the most power and torque.

What are VE tables? Back to Top

VE or Volumetric Efficiency is a measurement in percentage of efficiency that an engine can move the air/fuel into and out of the cylinder at various rpm and throttle positions (or manifold absolute pressure, MAP). This table is influenced by the engine displacement, camshaft, head design, exhaust, and air filter. In theory a value of 100 would equal the volume of the cylinder, but efficient design allows values greater than this. The maximum allowed value in any cell is 127.5. To increase fuel make the values larger, to decrease fuel make the values smaller.

How do I setup logging? Back to Top

On the Power Vision go to Datalog/Datalog Settings/Signals. On this screen highlight Manual, and then press Select. On the next screen you will see the field selected to log currently. To add more fields, press Add. On the next screen highlight the field next to Signal. Next, select Vehicle to choose any channel from the bike ECM; select Dynojet if you want to log data coming from an AutoTune module. On the next screen select the field you want to log, and then press Ok, Ok. Once you have all the fields you want to log, press Exit. When you start logging on the Gauges screen, the channels selected will be logged.

How do I setup gauges? Back to Top

To setup live gauges to view, on the Power Vision go to Datalog/Gauges. From this screen you can scroll thru the available gauge setups by pressing the Left or Right arrows. Once you have a Gauge screen you like, you have to select the fields you want to see. Just press None, on the next screen select None. On the following screen select Vehicle to choose from ECM channels, or choose Dynojet to choose from channels from the AutoTune module. On the next screen select the channel you want to display on that gauge field, and then press Ok, Ok When you have selected all of the channels you want to see, just press Exit.

Performance FAQs

Why does my Power Vision lock up while riding? Back to Top

Most of the time we have seen this type of problem, it has been the cable running to the Power Vision picking up interference from a coil or spark plug wire. Rerouting the cable away from these items usually fixes this problem.

What is the best Air Fuel Ratio for performance? Economy? Back to Top

A naturally aspirated engine, running on pump gasoline will normally make the most horsepower at an AFR of about 12.8 – 13.0. An AFR of about 14.6 will produce the best fuel economy. Dynojet normally creates tunes with AFR’s of 12.8 at high load/rpm areas; AFR’s around 14.6 at low load areas; and AFR’s between those numbers at other areas.

1Not available for Electronic Throttle Controlled (ETC) based bikes