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GEN 3 - Product Overview

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HISTORY:
 
The GEN 3 evolved out of the need to address the ever-increasing complexity of factory fuel injection. For the newcomer to the market or professionals wanting to make the transition from carburetors to fuel injection, the GEN 3 is a customizable solution for the shop that wants to take control of their tuning needs.

GEN 3 is the short term used to describe the Generation 3 Electronic Fuel Injection (EFI) controller manufactured by Dobeck Performance. The GEN 3 was released in 2005 under a private label program. The GEN 3 is a piggy-back EFI controller because it does not replace the stock ECU, but rather monitors the signals to the injectors and makes fuel adjustments based on the mode settings. The GEN 3 has a push button interface allowing access up to 6 different modes to allow for quick fine tuning by the end user without needing a computer.



KEY FEATURES:
 
  • USES LOAD BASED TECHNOLOGY WHICH ALLOWS FOR TUNING IN EVERY GEAR
  • ABILITY TO ADD FUEL WITHOUT ALTERING THE STOCK FUEL MAP
  • EASY TO SEE LED LIGHTS TO INDICATE OPERATING ZONE
  • PUSH BUTTON INTERFACE TO ALLOW QUICK FINE TUNING
  • EASY INSTALLATION
  • NITROUS FUEL AND SOLENOID CONTROL
  • BOOST SENSING FUEL CONTROL
  • TWO SENSOR MANIPULATION CONTROLS
  • CAPABLE OF FIRING TWO ADDITIONAL INJECTORS



HOW IT WORKS:
 
The real technology behind the GEN 3 is that it functions like a carburetor. It takes the knowledge and experience that many of us have, and converts it to a fuel injection interface. The GEN 3 breaks the stock fuel curve down into 3 different sections with each section correlating to a carb tuning adjustment. The GREEN zone correlates to adjusting the fuel mixture screw on a carburetor. The YELLOW zone correlates to adjusting the needle in a carburetor. The RED zone correlates to changing the main jet in a carburetor. Each zone is set to have a range of fuel adjustability by the developer which correlates to an on-board adjustable mode. The GEN 3 is called a "piggy-back" type of EFI controller meaning that it reads the stock injector signal from the ECU, modifies the signal, and then sends it to the injector. With our EFI controller, tuning your vehicle is as simple as pressing buttons. No tools. No down time. Simply jump on, go for a ride and make tuning adjustments on the fly.

What sets the GEN 3 apart from other types of EFI controllers is that it uses load based technology instead of just RPM vs TPS. Load based tuning allows a user to tune their vehicle for every gear and for all riding conditions. Load can easily be explained by stating that riding up a hill puts more load on the vehicle than driving on a flat road. Each zone for the GEN 3 can be adjusted by the developer to determine how load sensitive the zone is and from this definition the developer then sets switch points to change between each zone. The illustration below is a good reference to show how driving through a gear changes between the zones.

  GEN 3 Zones
The blue line represents a gradual acceleration in 4th gear for 2005 Harley Davidson's.



UNDERSTANDING AND ADJUSTING THE MODES:
 
The GEN 3 unit comes with three interactive buttons that are used to enter the adjusting mode and change the on-board tuning features' light settings. When power is applied to the unit, the adjusting mode may be accessed at any time by pressing the Mode button. The adjusting mode is distinguishable by at least one or more LEDs flashing. The current adjust mode is determined by the color of the flashing LED(s) and whether or not the 8th LED is blinking blue. The adjusting mode is exited by waiting several seconds without pressing any buttons. Upon exiting, the light setting is automatically saved for each individual mode.

The light settings in each mode are adjusted by pressing the (+) and (-) buttons located on the right and left side of the mode button, respectively. For easy reference, the LEDs are numbered 1 through 8. However, the LEDs can be adjusted to the following positions: 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8. Try the interactive Flash Demo below to get used to adjusting the modes and understanding the light setting positions.

  The most important thing to understand about a GEN 3 unit is that every unit is different. The GEN 3 technology was developed to allow companies to create customized fuel solutions and therefore documentation cannot be written to cover all the applications.
 
Green Mode - Mode 1 - Cruise Mode
Mode adjusts how much fuel is added when the Green zone is engaged. Most applications correspond this mode to adjusting the cruise fuel. Setting this mode to a light setting of 0.5 typically sets the vehicle back to its stock fuel curve.

Yellow Mode - Mode 2 - Acceleration Mode
Mode adjusts how much fuel is added when the Yellow zone is engaged. Most applications correspond this mode to adjusting the acceleration fuel. Setting this mode to a light setting of 0.5 typically sets the vehicle back to its stock fuel curve.

Red Mode - Mode 3 - Full Throttle Mode
Mode adjusts how much fuel is added when the Red zone is engaged. Most applications correspond this mode to adjusting the full throttle fuel. Setting this mode to a light setting of 0.5 is normally developed to set the vehicle back to its stock fuel curve.

Green-Blue Mode - Mode 4
Mode is not always present in application and can be assigned to a number of different features. Instructions will have to be consulted to determine how this mode functions.

Yellow-Blue Mode - Mode 5
Mode is not always present in application and can be assigned to a number of different features. Instructions will have to be consulted to determine how this mode functions.

Red-Blue Mode - Mode 6
Mode is not always present in application and can be assigned to a number of different features. Instructions will have to be consulted to determine how this mode functions.



INSTALLATION:
 
Installation varies from vehicle to vehicle so instructions will have to be referenced for the different models. However, the installation is essentially the same for all vehicles. The first thing to do is locate the stock connections to the injectors. Once found then you will disconnect the connectors and then plug directly into the GEN 3 harness. After connecting to the injectors you'll need to determine a proper ground location to hook up the ground wire. Final step for installing is determining where to mount the GEN 3 and zip tying the harness to the frame.



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