Step-by-step Guide to Flash Tuning a Subaru Brz with Accessport

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Flash tuning a Subaru BRZ using the Accessport is a popular method for enhancing performance. This guide will walk you through the steps necessary to successfully flash tune your vehicle.

What You Will Need

  • Subaru BRZ vehicle
  • Cobb Accessport device
  • USB cable
  • Computer with internet access
  • Basic tools (if needed for installation)

Before beginning the tuning process, ensure you have all the necessary equipment. The Accessport is a vital tool for this process, allowing you to modify the vehicle’s engine parameters.

Step 1: Preparing Your Vehicle

Before flashing your Subaru BRZ, it’s essential to prepare your vehicle properly. Follow these sub-steps:

  • Ensure your vehicle is parked on a level surface.
  • Turn off all electronic accessories (radio, air conditioning, etc.).
  • Check that your battery is fully charged.

Connecting the Accessport

Connect the Accessport to your vehicle’s OBD-II port. This port is typically located under the dashboard near the driver’s seat.

Step 2: Downloading the Software

To flash tune your Subaru BRZ, you need to download the necessary software. Follow these steps:

  • Visit the Cobb Tuning website.
  • Create an account or log in if you already have one.
  • Download the Accessport Manager software to your computer.

Step 3: Installing the Accessport

Once you have the Accessport Manager software, it’s time to install the Accessport. Here’s how:

  • Open the Accessport Manager software on your computer.
  • Connect the Accessport to your computer using the USB cable.
  • Follow the on-screen instructions to install the Accessport firmware.

Step 4: Choosing a Tune

After installing the Accessport, you need to select a tune that fits your needs. Consider the following:

  • Stock Tune: Maintains factory settings.
  • Stage 1 Tune: Enhances performance without additional modifications.
  • Stage 2 Tune: Requires bolt-on modifications for optimal performance.

Step 5: Flashing the Tune

Now that you’ve selected your desired tune, you can flash it onto your vehicle. Follow these steps:

  • With the Accessport connected to the vehicle, turn the ignition to the ON position without starting the engine.
  • Navigate to the “Tune” menu on the Accessport screen.
  • Select “Install” and then choose the tune you want to flash.
  • Confirm your selection and wait for the flashing process to complete.

Ensure you do not turn off the ignition during this process, as it may cause issues with the ECU.

Step 6: Finalizing the Tune

After the tune has been successfully flashed, it’s important to finalize the process:

  • Turn off the ignition and disconnect the Accessport from the OBD-II port.
  • Start your vehicle and let it idle for a few minutes.
  • Check for any warning lights on the dashboard.

Step 7: Testing Your Vehicle

Once the tune is flashed and the vehicle is running smoothly, it’s time to test drive:

  • Take your Subaru BRZ for a short drive.
  • Pay attention to throttle response and overall performance.
  • Monitor for any unusual noises or warning lights.

Troubleshooting Common Issues

If you encounter problems during the tuning process, consider the following troubleshooting tips:

  • Ensure the Accessport is properly connected to the OBD-II port.
  • Check that the vehicle battery is charged.
  • Verify that the correct tune was selected for your vehicle model.

Conclusion

Flash tuning your Subaru BRZ with the Accessport can significantly enhance its performance. By following this step-by-step guide, you can ensure a smooth tuning process and enjoy the benefits of improved power and efficiency.