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Need help?Do you have a question about the Dynojet POWER VISION 3 and is the answer not in the manual?
Initial steps for installing the Power Vision device onto a vehicle.
Procedures for flashing a tune file to the vehicle's ECU using the Power Vision.
Customizing display screens with user-selected channels and gauges.
Installing the latest firmware for the Power Vision using the update client.
Steps to enable Autotune Basic or Autotune Pro for engine tuning.
Recording vehicle data under various conditions for Autotune correction.
Applying collected data to tune the engine's VE tables.
The Dynojet Power Vision 3 is a tuning device designed to optimize the performance of Harley-Davidson motorcycles by interfacing with and tuning the vehicle's Engine Control Unit (ECU). Its primary function is to allow users to flash custom tunes, monitor vehicle data, and diagnose potential issues, ultimately aiming to enhance the riding experience.
The Power Vision 3 serves as a comprehensive tool for vehicle performance management. At its core, it enables users to flash tunes to their motorcycle's ECU. This process involves replacing the stock ECU tune with an optimized Dynojet tune (.djt file) to achieve improved performance. The device also supports reading the stock ECU file (.stk file) for backup and restoration purposes. The tuning process is initiated by connecting the Power Vision 3 to the vehicle's diagnostic port and turning the key on. The device then scans for compatible tune and stock files, guiding the user through the flashing process, which can take approximately fifteen minutes. It's crucial not to turn off the key switch or disconnect the Power Vision during this operation to prevent damage. Once paired with a vehicle's ECU, the Power Vision 3 becomes locked to that specific vehicle, requiring a tune license for use on another motorcycle.
Beyond flashing tunes, the Power Vision 3 offers extensive data monitoring capabilities. It features four user-customizable full-color gauge screens, allowing riders to display various channels such as Throttle Position, Engine Speed, Gear, and more. This "window into your vehicle" functionality provides real-time insights into engine operation, which can be invaluable for both performance enthusiasts and those troubleshooting issues. The device can be mounted to handlebars or dashboards using supplied Velcro or optional mounting hardware to ensure easy access to these screens during a ride.
The device also incorporates an "Autotune" feature, a sophisticated process for fine-tuning the VE (Volumetric Efficiency) Tables in the ECU based on AFR (Air/Fuel Ratio) readings from O2 sensors. Autotune Basic utilizes stock narrowband O2 sensors, while Autotune Pro requires accessory wideband O2 sensors (Dynojet wideband O2 kit). This feature allows the Power Vision 3 to automatically log sample data while the engine is running, determine necessary corrections, and apply them to create a new, optimized tune file. The process involves logging data under various RPM and throttle position conditions, applying the calculated values, and repeating the cycle for best results. Autotune can be enabled or disabled, and its values can be reset to start fresh.
Diagnostic capabilities are another key aspect of the Power Vision 3. Users can view vehicle information such as device status (paired/not paired), VIN, Model ID, ECU serial number, tune compatibility, and checksum compatibility. It also allows for reading and clearing diagnostic trouble codes, providing a means to identify and resolve engine-related issues. The device can also read the ECU, a process that takes about fifteen minutes, and restore the ECU to its original state if a flash is incomplete or the vehicle fails to start.
The Power Vision 3 is designed for user-friendliness with a clear interface navigated by physical buttons: RETURN, SCROLL, ENTER, HOME/LOG. These buttons facilitate menu navigation, selection, cycling through gauge screens, and data logging. The device has a USB cable port for connecting to a computer and a diagnostic cable port for connecting to the vehicle.
To get started, users connect the Power Vision to the vehicle, turn the key on, and the device automatically scans for files. Depending on the file state (no compatible files, no tune files, or all files found), the device prompts the user for the next steps, such as reading the ECU or flashing a tune. Tune files can be downloaded from tunes.dynojet.com.
Configuring gauges is a straightforward process, allowing users to select up to four channels per screen and customize their precision or units. This personalization helps riders focus on the data most relevant to their needs.
Data logging is initiated by pressing the Log button, which illuminates a red banner on the screen. Pressing it again stops logging. A "Snapshot Log" feature allows recording the previous two minutes of operating time by holding the Log button for two seconds. Log files can be viewed using the Power Core software on a computer. The device also allows for deleting individual log files or all logs.
The Power Vision 3 includes settings for rotating the screen orientation and adjusting brightness, enhancing visibility in various conditions.
The Power Vision 3 offers several features to maintain its functionality and ensure optimal performance.
Updating the device firmware is a crucial maintenance task. Users can connect the Power Vision to a computer via USB, navigate to the POWERVISION drive, and run the Update.exe file. The Update Client application allows loading the latest firmware from www.dynojet.com, restoring original Dynojet tune and stock files, or retrieving new tunes. This ensures the device is always running with the most current software and has access to the latest tune files.
The device also supports reformatting its internal disk, which erases all data. This can be useful for troubleshooting or preparing the device for new use.
For diagnostic purposes, the Power Vision 3 can export its diagnostic history log to a computer. This log, a record of recent operations, can be viewed by the user or sent to technical support for assistance.
The "Reset Adaptives" feature allows users to reset the learned long-term narrowband fuel trims, which can be beneficial after significant engine modifications or tuning adjustments. Similarly, "Reset Idle Trim" allows resetting the idle trim.
The Autotune feature itself has maintenance aspects, such as the ability to "Delete All AT Data," which erases all stored internal Autotune information and data for all vehicles. This is recommended if errors occur or to start fresh. Autotune log files can also be exported before applying values, as they are automatically deleted once values are applied.
Finally, the USB Mode allows the Power Vision to connect to a computer for sending and receiving files, facilitating tune management and data transfer for analysis with the Dynojet Power Core software. While the Power Core software is optional, it enhances the tuning experience by providing advanced analysis tools.
General| Data Logging | Yes |
|---|---|
| On-Screen Data Monitoring | Yes |
| Display | Color LCD touchscreen |
| Pre-loaded Tunes | Yes |
| Custom Tunes | Yes |
| Software Updates | Yes |
| Diagnostic Codes | Yes |
| Connectivity | USB |
| Tuning Features | Fuel, ignition, and transmission tuning |
| Power Source | Vehicle diagnostic port (OBD) |
| Compatibility | Various motorcycle, UTV, and other powersports vehicles (check specific model compatibility) |
