The Mygenius Obdii ECU Tuner by Dimsport has long been a favorite among car enthusiasts for its simple and effective ECU tuning capabilities. This user-friendly device allows you to easily tune or detune your vehicle with minimal effort. All you need is an updated MyGenius device, the correct tune file, and the connecting cables. This guide provides a comprehensive walkthrough of the ECU tuning process using a MyGenius OBDII ECU Tuner, specifically focusing on flashing a VR Tuned ECU file onto a Mercedes Benz C63 W205.
alt text: Dimsport MyGenius OBDII handheld device plugged into a car's OBDII port
Preparing for the Tuning Process
Before starting, ensure your MyGenius device is updated with the latest software by connecting it to a Windows 8 (or newer) PC and installing the necessary software. Connecting a battery charger to your vehicle is highly recommended, as the tuning process can consume significant power. Maintaining a consistent 12-volt supply is crucial for a successful flash. With the charger connected, turn on your vehicle’s accessories to power the ECU Tuner.
Reading Your ECU’s ID
Plug the MyGenius device into your vehicle’s OBDII port. Once booted, navigate to the “Work” menu and select “PRT Identify.” Follow the on-screen prompts until you reach the option to read either the “ID” or the “Tool.” Choose “ID” to read your ECU’s identification. After the device displays “Task completed Successfully,” you can safely shut down your vehicle and disconnect the device.
Obtaining and Uploading the Tune File
Connect the MyGenius to your computer and open the MyGenius client software. Click “Download from MyGenius” to extract the ID file and save it to your desktop. Upload this file to VR Tuned (link provided in original article) for modification. VR Tuned will return a modified file containing both your stock and tuned files, allowing you to switch between them as needed. This process typically takes 24 hours during business hours. Once received, open the MyGenius software and click “Upload to MyGenius,” following the on-screen instructions to load the files onto the device.
Flashing Your ECU with the MyGenius OBDII
Reconnect the MyGenius device to your vehicle’s OBDII port with the accessories turned on. Navigate to the “Work” menu and select the VR Tuned modification. The flashing process will take approximately 15 minutes and may require a few ignition cycles. Caution: Do not interrupt this process, as it could permanently damage your ECU.
Verifying the Tune and Reverting to Stock
After the flash completes successfully, start your vehicle. Ensure it starts smoothly and no warning lights illuminate on the dashboard. Let the engine warm up and test the new tune. You should notice a more responsive throttle and quicker revving. To revert to the stock tune, simply repeat the flashing process, selecting the stock file instead of the tuned file. The MyGenius can store up to ten tune files, providing ample space for various performance options.
Conclusion: Why Choose the MyGenius OBDII?
The MyGenius OBDII ECU Tuner is a powerful yet user-friendly tool for enhancing your vehicle’s performance. Its ease of use, coupled with extensive online support and the ability to switch between multiple tunes, makes it an excellent choice for both beginners and experienced tuners. For further assistance or inquiries, refer to the VR Tuned instruction manual (link provided in the original article) or contact VR Tuned directly.
