Quick Fuel Technology Qfi Electronic Fuel Injection System - Manual (Page 20)

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HANDHELD Controller
Opening Screen
PHASE IV: Installing the Engine Control Unit (ECU) software
This is the phase where you use the Qfi HANDHELD controller, which will allow you to enter, in a
straightforward, step-by-step manner, the important information about your engine to establish the
base tune-up for the vehicle on the system’s ECU.
The HANDHELD is the initial connection between you and the Qfi System. In addition to the entry of the
engine’s specifics, you are establishing the basics for the initial engine start up and operation. From that
point forward, the ECU will begin its Adaptive Learning process, and a number of aspects of this
procedure can be monitored on the handheld controller.
The Qfi HANDHELD unit, with the proper input information in the vast majority of installations will adapt
the ECU to your engine’s parameters and your driving style to provide excellent drivability and
performance.
Because the Qfi HANDHELD programs the ECU with the correct baseline engine data, and the Adaptive
Learning capabilities of the ECU, the Qfi DASHBOARD program for your laptop will be used almost
exclusively to do very fine tuning. It is, however, a powerful tool that can help teach you about the
features of the Qfi System, and allow you to make slight adjustments to the program, and observe the
results.
The Qfi software is installed into the ECU using the HANDHELD controller and/or a laptop computer
using WINDOWS XP, WINDOWS VISTA, WINDOWS 7, or WINDOWS 8 operating systems. (An Apple
computer/operating system cannot be used).
Step 1: Connect the Qfi HANDHELD Controller to the ECU
At this point, the HANDHELD Controller will provide the Qfi system with
the needed information to begin the process we call “Adaptive
Learning” by establishing the baseline values for the engine and a
number of other variables the ECU needs to begin to operate.
As mentioned above, the DASHBOARD program on the computer will
allow you to begin to fine tuning later. If you need to use the
DASHBOARD program for a laptop computer, the set up instructions are
at the end of this section, following the initial HANDHELD set-up.
The HANDHELD connects to the vehicle by a data communications cable that uses a 2.5 mm male audio
jack-type connector from the side of the HANDHELD to connect to female audio jack-type connector
that is part of the QFI System’s wiring harness.
SETTING UP THE ECU USING THE Qfi HANDHELD CONTROLLER

Plug the 2.5 mm male data plug into the 2.5 mm female plug in the ECU wiring harness.

Turn on the ignition key to energize the ECU and the HANDHELD Controller

The HANDHELD Controller screen will show the opening screen
o Use the Controller’s UP, DOWN and ENTER button to select menus and answers