Are you looking to boost your vehicle’s performance and save money on fuel? One effective way to achieve this is by installing an OBD2 tuner. In this guide, we’ll walk you through the installation process of a Bully Dog GT Platinum tuner, a popular choice in the market, focusing on how it connects to your vehicle’s OBD2 port. While this guide is based on a Jeep installation, the general principles apply to many vehicles.
Initial Software Install and Setup for Your Bully Dog OBD2 Tuner
Before heading to your garage, you’ll need to set up the software for your Bully Dog Obd2 tuner. The provided instructions are generally clear, but Mac users might encounter a slight hurdle. The Bully Dog Update Agent, necessary for initial setup and updates, is designed for Windows.
If you’re a Mac user, don’t worry! You can use software like Parallels to run Windows on your Mac and proceed with the software installation. This involves installing the update agent on your computer and then using it to register your device and update the tuner software. Make sure to add the SD card to the tuner as instructed. Once the software setup is complete, you’re ready to move to the vehicle installation phase.
Installing Your Bully Dog OBD2 Tuner in Your Vehicle
Now for the exciting part – getting the Bully Dog OBD2 tuner physically installed in your vehicle. Here’s a step-by-step guide:
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Connect to the OBDII Port: Locate your vehicle’s OBDII port. It’s usually found under the dashboard on the driver’s side. Plug one end of the provided cable into the OBDII port and the other end into the Bully Dog tuner. Ensure the small switch on the OBDII adapter box is set to “battery.”
A point to consider during this step is the cable placement from the OBDII plug. Depending on your vehicle model, especially if you have a manual transmission, ensure the cable doesn’t interfere with your foot operation, particularly the clutch.
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Install the Vehicle Tune: Follow the on-screen prompts and the printed instructions to install the updated tune to your vehicle’s computer. This process can take around 30 minutes, and it’s crucial not to disconnect power during the update. Carefully follow the key on and off steps as directed. During this process, your vehicle’s dash might display unusual signals, which is a normal part of the installation.
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Route the Wiring: For a clean and professional installation, proper wire routing is essential. Start by removing the driver’s side dash end panel. These panels are typically held by clips and can be easily pulled off.
Run the HDMI cable upwards from the floor area into the side panel space. Find a suitable hole in the vehicle’s frame to secure the cable using zip ties.
Next, feed the other end of the HDMI cable up through the weather stripping at the base of the windshield.
Important Note: Be cautious when handling the HDMI cable, especially when routing it through tight spaces like weather stripping. Avoid using excessive force or sharp tools. HDMI connectors are delicate. If you encounter resistance, use a lubricant or try a different route. Damaging the HDMI connector can lead to frustration, as you might need to find a replacement, as experienced during this installation.
To prevent the HDMI cable from accidentally disconnecting from the OBDII adapter box, especially since HDMI connections are not locking type, you can use zip ties to secure the connection. This simple modification ensures a stable connection during vehicle operation.
Connect the HDMI cable to the OBDII adapter box and carefully tuck away the wires under the dash, ensuring they are away from foot traffic and moving parts.
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Prepare the Power Wire: Attach the fuse spade connector to the end of the Bully Dog power lead. Run this wire through the driver’s side grommet in the firewall and pull it down towards the floor inside the vehicle. Then, plug it into the OBDII adapter box. At this stage, switch the toggle on the OBDII adapter box to the “key” setting.
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Fuse Connection: Identify a suitable 10A fuse in your vehicle’s fuse box that is powered when the key is in the accessory or “on” position and unpowered when the key is off. Use an electronic tester to confirm this.
Once you’ve identified the correct fuse, use a fuse tap to connect the Bully Dog power wire. Ensure you insert the fuse tap into the side of the fuse slot that is not powered when the key is off. Reinsert the original fuse and route the wire neatly inside the fuse box. You might need to create a small notch in the fuse box seal to allow the wire to pass through without being pinched.
Before closing the fuse box, connect the tuner to the HDMI cable and turn the vehicle key to the “ON” position to verify that the Bully Dog OBD2 tuner powers up correctly. Once confirmed, turn the key off, replace the fuse box lid, and ensure it is properly sealed.
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Final Wiring and Mounting: With the fuse box closed, neatly route the power wire in the engine bay and replace the rubber grommet on the driver’s side firewall. To prevent the OBDII plug cable from interfering with driving, especially in manual transmission vehicles, you can secure it to the side using zip ties, as demonstrated in this Jeep installation.
Finally, mount the Bully Dog tuner in a convenient location. A temporary mount can be used initially, like zip-tying it to an existing GoPro mount. For a more permanent and professional setup, consider an A-pillar mount designed for the Bully Dog GT Platinum, which can be installed later.
Conclusion
Installing a Bully Dog OBD2 tuner is a straightforward process that can significantly enhance your vehicle’s performance and driving experience. By following these steps and avoiding common pitfalls, you can successfully install your tuner and start enjoying the benefits. Remember to always refer to the specific instructions provided with your Bully Dog unit and exercise caution when working with your vehicle’s electrical system. Upgrade your ride today with a Bully Dog OBD2 tuner and unlock your vehicle’s full potential!
