Manual

GT DIESEL
10
Pyro 1 & 2
Both pyro 1 and pyro 2 measure exhaust gas temperature. The only
dierence between them is the location of the temperature sensor.
These temperature readings are used for defuel and warning level
settings, which can help protect your engine from heat damage.
The availability and location of factory installed pyrometers vary
according to vehicle make and year. All ’07.5 and newer diesel
pickups that are equipped with OEM diesel particulate lters also
include factory installed pyrometer sensors. For all other vehicles,
pyrometer kits are available for purchase from www.BullyDog.com.
Speed
This option shows the current vehicle speed. Monitoring this infor-
mation can help you ensure that the speed displayed on the GT and
the vehicle speedometer match the actual vehicle speed. Other im-
portant numbers, like the odometer and fuel eciency, are based
on this information. If the speed is displayed incorrectly on the GT,
it can easily be corrected. See page 13 for more information.
Boost
This option shows the turbo boost pressure.
RPM
This option shows the number of revolutions per minute of the
engine. This will help you protect your vehicle and improve per-
formance by watching and ensuring that the RPMs stay within the
optimal operating range for your engine.
Coolant
This option shows the coolant temperature. The temperature infor-
mation is used in defuel and warning level settings to help prevent
damage to the engine.
Throttle
This option shows the throttle position measurement – it is
displayed as the percent open.
The throttle position information is used by the Driving Coach
to indicate where changes can be made to driving habits to
maximize fuel eciency.
Intake
This option shows the intake air temperature.
Air temperature aects combustion temperature and engine
performance. Adding a Bully Dog Rapid Flow Intake (RFI) closed
air system will lower this temperature, improve performance,
and increase horse power. The Gauge Tuner (GT) is designed to
work with the RFI to get the most out of your engine.
ICP
This option shows the injection control pressure (ICP). The ICP
aects correct fuel injection, and this information is used by the
engine computer to adjust other settings like fuel ow to achieve
optimum engine performance and increase horse power.
Trans Temp
This option shows the transmission temperature.
The transmission temperature is used in defuel and warning level
settings to help prevent damage to the transmission.
MAF
This option displays information from the Mass Airow Sensor.
It is used by the Engine Control Module (ECM), aka: the engine
computer, to determine how much air is going into the engine.
The ECM then sends the correct amount of fuel for optimum
engine performance.
Fuel Econ.
This option displays a real-time measurement of the vehicle’s fuel
economy, shown in miles per gallon.
This information will help you to determine when your fuel
eciency peaks or dies to improve your driving habits and your
bottom line when visiting the pump.
Fuel Flow
This option displays the amount of fuel being used at any given
time; it is shown in gallons per hour.
The following gauge options are provided to allow the GT to
monitor additional sensors that are only available with the
Bully Dog Sensor Docking Station.
A/F Ratio 1 & 2
This gauge option shows the ratio of air to fuel. The GT will use
this information to ensure that your engine is using the correct
ratio to completely burn all of the fuel being used and maximize
performance and eciency.
Only available on Bully Dog Sensor Docking Station part number
40385.
AUX 1, 2 & 3
This gauge option shows the information from sensors connected to
the 0-5V auxiliary inputs on the Bully Dog Sensor Docking Station.
AUX Temp
This gauge option shows the information returned to the Sensor
Docking Station by an optional temperature sensor. The port for
this sensor is marked as 5V out.
Frequency
This gauge option shows the information from a pulsing type of
sensor, like an on-board speed sensor or another optional sensor
that operates on the 0-5kHz 5V pulse range. The port on the Bully
Dog Sensor Docking Station for this gauge option is marked as FN.
Gauge Setup (continued)