Bully-dog 40420 gauge GT tuner User Manual

GT DIESELiNot legal for sale or use in California on pollution-controlled vehicles.GT DieselPart #40420Doc. 40420-99 v3.5

GT DIESEL9AVAILABLE OPTIONS  ALL MODELSThese options are presented in the order they appear on the Main Menu. If options are missing in your Main Me

GT DIESEL10Pyro 1 & 2 Both pyro 1 and pyro 2 measure exhaust gas temperature. The only dierence between them is the location of the temperature

GT DIESEL11Performance Testing This feature oers drag racers the ability to complete the 1/4 Mile and 0-100 KPH performance tests.You can also downlo

GT DIESEL12Driving Coach Setup The Driving Coach is a special feature designed to be your fuel economy dashboard and information center. It provides

GT DIESEL13Driving Coach Setup (continued) Checking Speedometer AccuracyFirst: Change the Gauge Setup to have the Speed displayed on the main display

GT DIESEL14Driving Coach Setup (continued) Checking Average Fuel EconomyIt is important to check the accuracy of the average economy readout on the GT

GT DIESEL15Vehicle Setup Select Pyro SourceChoose either factory installed or Bully Dog pyrometers.Set Defuel LevelsSet the temperature level at which

GT DIESEL16User Options Set Background ThemeChange the display colors on your GT.Adjust BacklightChange the brightness for both the day and the night

GT DIESEL17SPECIAL FUNCTIONSThe following features are not available for all vehicles. Check the chart in the Product Information Sheet for a complet

GT DIESEL18VEHICLE SPECIFIC DOWNLOAD FEATURESThe following features are not available for all vehicles. Check the chart in the Product Information Sh

GT DIESEL1CONTENTSAbout the GT ... 2-16Preview of Basic Installation Steps ...

GT DIESEL19IMPORTANT WARRANTY INFORMATIONVehicle Warranty You can access information about your vehicle warranty and your rights as an owner to use af

GT DIESEL20UPDATING THE GTOVERVIEWFAQs about UpdatingWhy do I have to update my GT? Because it’s very important! These are just some of the reasons:1

GT DIESEL21UPDATING THE GTBasic Steps to Update (Short Version) You can find a more detailed description of this process on pages 22-25.1. Run the Upda

GT DIESEL22UPDATING THE GTDETAILED STEPS FOR WINDOWSThe following instructions are intended for Microsoft Windows computers. Please see page 27 for

GT DIESEL23UPDATING THE GT DETAILED STEPS FOR WINDOWSThe following instructions are intended for Microsoft Windows computers.4. You can download th

GT DIESEL24UPDATING THE GT DETAILED STEPS FOR WINDOWS5. Run the application.• If you have just installed it, the Agent may already be running. - Y

GT DIESEL25UPDATING THE GT DETAILED STEPS FOR WINDOWS8. NOTE: This step varies depending on how you have connected the Bully Dog to your computer.•

GT DIESEL26TROUBLESHOOTING UPDATING PROBLEMSThe Update Agent Won’t Install Q . Why does my computer open a window full of weird symbols when I try to

GT DIESEL27UPDATING YOUR GTDETAILED STEPS FOR APPLE1. Return your vehicle to stock. See pages 38-40 for detailed instructions on this process.2. Co

GT DIESEL28PHYSICAL INSTALLATIONBe sure to check the list and description of included parts on pages 4-6.Brief Preview This is a quick list of the bas

GT DIESEL2ABOUT THE GT Preview of Basic Installation Steps1. Update the GT. This step is very important!!! See page 20 for more information.2. Physica

GT DIESEL29PHYSICAL INSTALLATIONDetailed Instructions 1. Connect The OBDII Adapter Plug to the OBDII Port. See page 6 for a detailed description of th

GT DIESEL30IMPORTANT NOTE: Safety is your first and most important responsibility as a driver. Safety is also your first and most important concern whe

GT DIESEL31ADDITIONAL MOUNTING OPTIONSBully Dog has created alternative mounting solutions which will allow you to mount your GT in even more convenie

GT DIESEL32INSTALLING THE TUNEIn order to enjoy additional horsepower and other advantages of tuning your vehicle, you need to use the Install Downloa

GT DIESEL33INSTALLING THE TUNEImportant Preparation Steps (Continued) Make SURE that the Battery is ChargedDO make sure that your batteries are fully

GT DIESEL34INSTALLING THE TUNERemoving Fuses This step is vital for successful installation on some vehicles, but not required on others. The followi

GT DIESEL35Important: this fuse box is located inside the engine bay on the driver’s side of the vehicle2003-2005 Duramax Fuse DiagramRemove fuses pri

GT DIESEL36HOW TO INSTALL THE TUNE1. Complete the Pre-install steps • Update GT using Update Agent (pages 20-27).• Physical Installation (pages 28-31)

GT DIESEL37INSTALLING THE TUNETroubleshooting Installation Problems Error During Installation1. Make note of the code number and all information displ

GT DIESEL38UNINSTALLING  RETURNING TO STOCKWhat does this mean? “Uninstalling the tune” and “returning to stock” are different ways to describe the sa

GT DIESEL3VEHICLE APPLICATIONSThis vehicle application list is current for GT software version 1.13.8. Check the GT product page at www.bullydog.com t

GT DIESEL39UNINSTALLING  RETURNING TO STOCKHow to Return to Stock There are two ways to return your vehicle to stock.IMPORTANT NOTE: Both methods are

GT DIESEL40UNINSTALLING  RETURNING TO STOCKWhat if I Don’t Return to Stock? Here are some common examples:• If you take your vehicle in for service,

GT DIESEL41MORE INFORMATIONPyrometer Calibration What is Pyrometer Calibration?Pyro calibration is a way to nd the best temperature to use for the GT

GT DIESEL42MORE INFORMATIONWindows Update Windows XP1. Click the Start button.2. Click All Programs3. Click Windows Update4. Windows Update will chec

GT DIESEL43MORE INFORMATIONWindows Update (continued) Windows XP5. If your computer doesn’t have the most recent update software, your browser will di

GT DIESEL44MORE INFORMATIONWindows Update (continued) Windows XP9. At this point, you have two choices:• Express: Choose this option if you prefer an

GT DIESEL45MORE INFORMATIONWindows Update (continued) Windows XP12. Your computer will then download and install the updates for the Windows Update s

GT DIESEL46MORE INFORMATIONWindows Update (continued) Windows XP14. After checking for the latest updates for your computer, Windows Update will displ

GT DIESEL47MORE INFORMATIONWindows Update (continued) Windows XP17. Once the .NET Framework 3.5 Service Pack is selected, click on Review and Install

GT DIESEL4820. Once the .NET installation is complete, click Restart Now.21. Once your computer has restarted, the update process is Complete!You can

GT DIESEL4PARTS LISTYour GT package should include the following items:4. Power WirePart Number: 40400-1014. Mini USBPart Number: 40400-1031. The GT H

GT DIESEL49CONTACTING TECHNICAL SUPPORTTechnical Support is open Monday-Friday, 8 a.m. – 5 p.m., Mountain Standard Time.The phone number to contact te

GT DIESEL50TRANSMISSION RELEARN PROCESSIf you notice rougher shifting on 6.6L Duramax or 6.0L Powerstroke vehicles after installing the tune to your e

GT DIESEL51FAQS/TROUBLESHOOTINGEngine Warm-Up Mode Q. My engine is stuck in warm-up mode and I can’t change the power level. What is going on and ho

GT DIESEL52FAQS/TROUBLESHOOTINGMy Vehicle Won’t Start after Returning to Stock Q. My truck won’t start after I uninstalled the tune. How do I fix thi

GT DIESEL53FAQS/TROUBLESHOOTINGDPF Delete Q. Will the GT delete my DPF?A. No. Bully Dog does not offer DPF delete. Bully Dog will never offer DPF del

GT DIESEL5PARTS DESCRIPTIONThe GT Head Unit The main component of the Gauge Tuner is the head unit. It has the screen and the buttons that allow you

GT DIESEL6PARTS DESCRIPTIONThe OBDII Adapter Plug The GT assembly connects to your vehicle through the diagnostic port, which is located under the das

GT DIESEL7BUTTON NAVIGATIONFUNCTION 1: Press the top left button to enter the Main Menu, also use this button to exit menus.FUNCTION 2: Press any of t

GT DIESEL8THE MAIN SCREENThis picture of the GT main screen has the Driving Coach selected for the Large Gauge option. You can change which gauge is