Bully Dog WatchDog Economy Monitor
| Item Number | BUL-40400 |
| Price |
|

If you’re looking for one digital monitor unit to replace multiple gauges or you want a way to get more miles out of your gallon, Bully Dog has engineered the versatile WatchDog Economy Monitor to meet the diverse needs of everyone from diesel performance enthusiasts to people just wanting to save a buck on fuel – people just like you!
FEATURES
- 1 Unit Replaces Multiple Gauges
- Ergonomic Design
- Read and Erase Diagnostic Trouble Codes
- Internet Updateable
- Transferable to Any Applicable Vehicle Application
- Easy-to-use Capacitive Touch Buttons
- Full 64 color LCD Screen
- Back Light Adjustable with Daytime and Nighttime Driving Modes
- Simple and Easy Installation
The WatchDog™ works on all 1996 and later vehicles with an OBDII port common to North America. The product comes equipped with a Set-Up Wizard that calibrates the product to your vehicle in order to provide maximum efficiency and calculate wasted energy. The WatchDog™ serves as a digital gauge/monitor and features a valuable Driving Coach for gas and diesel powered vehicles. It features the ability to monitor over 20 vehicle parameters all while you receive valuable driving suggestions from the Driving Coach to maximize fuel economy.
DIGITAL GAUGE / MONITOR
The WatchDog Gauge offers a comprehensive digital gauge package including all standard PID or vehicle parameters included in vehicles ’96 and newer. The gauge will display a combination of any four parameters with over 20 different ones to choose from depending on your vehicle. These gauges are all displayed at the same time on an easy to read digital display. The following is a list of parameters that the WatchDog is able to read from your vehicle. These parameters rely on sensors that your vehicle was equipped with from the factory, not all vehicles have all of these options available.
Vehicle Monitoring Functions:

- Instant Fuel Economy
- Average Fuel Economy
- OEM EGT 1
- OEM EGT 2
- Boost Pressure (PSI)
- Speed in MPH or KPH
- RPM (engine speed)
- Coolant Temp
- Timing Position in Degrees
- Throttle Position in percent
- Air Intake Temperature
- Mass Air Flow (grams/sec)
- Barometer
- Battery Voltage
- Load
DRIVING COACH
It is proven that drivers who change their driving habits to maximize fuel economy can see improvements up to 37% per gallon of fuel. Recognizing this fact, Bully Dog designed the first software of its kind into the Watchdog™.
Necessary information is gathered in real time from the vehicle factory sensors. This cutting-edge software then processes that data and the Driving Coach guides the vehicle’s driver to the most efficient, economical driving techniques in order to maximize fuel economy.
And don’t forget the WatchDog Economy Monitor also lets you test your vehicle performance! Performance tests include Horsepower, Torque, 0-60 times in seconds, 1/8 mile times in seconds, and 1/4 mile times in seconds!
Click here to view a complete Product Information Sheet
BUL-40402
Bully Dog WatchDog Economy Monitor BUL-40400 and BUL-40402 will work with:
ALL 1996 and newer vehicles equipped with an OBDII port common to North America.
COMING SOON!
In the meantime, check out our other Parley’s Diesel Product Installation Videos

Bully Dog Technologies offers a full-line of high quality diesel performance products for Ford, Dodge, and Chevy Trucks. The first to develop a safe, clean horsepower-increasing vehicle-mounted propane injection system for diesel engines, today Bully Dog offers a complete line of quality diesel performance products.
In addition to diesel pickup trucks, now Bully Dog has engineered performance upgrades for Volkswagen TDI’s, RV’s, Farm Tractors, even Mercedes-Benz diesels and Big Rigs. Their products are well thought out, user friendly and technologically advanced with features that will enhance your driving experience and save you money at the pump. Trust Bully Dog to deliver the equipment to make your diesel performance dreams a reality!
Links
- Manufacturer Product Web Page
- Manufacturer Installation Instructions
- Manufacturer Product Support
- Manufacturer Warranty
Manufacturer Contact Info:
866-285-5936
Bully Dog Sales & Distribution
2700 Old Alton Rd.
Denton, TX 76210
This product is returnable.
Standard Parley’s Diesel Performance Return Policy applies.






