Haltech E6GMX - Manual (Page 7)

E6GMX Manual
7
Introduction
Congratulations on your decision to choose a Haltech Engine Management System. Haltech
EFI systems have been successfully installed on thousands of vehicles, from power offshore
boats to twin-turbo Ferraris, from pylon racing aircraft to jet skis and snowmobiles. Over the
past decade, many motor-sport enthusiasts have discovered that the Haltech computer is easy
to use and performs well by enabling users to precisely control ignition timing and fuel
delivery. Precise ignition and mixture control leads to excellent drivability and fuel economy,
something that is often lacking in high-performance carburettor engines.
Haltech users have discovered that the flexibility of the Haltech Electronic Control Unit
(ECU) and PC based programming software leads to the easiest possible installation on
everything from traditional pushrod V8s to high performance turbocharged racing
motorcycles. We are proud of the fact that some of the most respected professional racers and
super-car builders in the world use Haltech equipment for the same reasons that Haltech is
popular with motor-sports enthusiasts: it is flexible and friendly; is installed easily; and you
can tune your Haltech simply, without having to make the project a major research effort.
Installation Overview
The Haltech E6GM system utilises a special-purpose programmable microcomputer
designed for engine management. The E6GM system is designed to plug directly into your
existing GM wiring harness, making installation easy. The standard ECU is removed and
replaced with the Haltech E6GM ECU, and you're ready to start re-tuning your engine.
Also included in the system is a special short wiring harness that connects into the back of
the ECU (for access to communications port and special inputs), plus programming software
and cable for you to tune the system includes the ECU, engine sensors, and a special wiring
harness to connect them, plus programming software and cable for you to tune the system.
With the Haltech system installed, you tune it by connecting the ECU to an IBM
compatible PC via the supplied communications cable. The Haltech Programming software
allows you to configure and modify the ignition and fueling data stored in the ECU: it's as
simple as adjusting the heights of the bar graphs displayed on your PC screen. Collectively,
the bar graphs form the "Maps" that instruct the ECU how to inject fuel and when to fire
the spark under different conditions. The programming software has been designed to be
functional, "friendly" and
intuitively easy to use.
When the time comes to start your engine, the base fuel map already loaded in the system
could get you going immediately. If not, a little alteration with some assistance from this
manual should get your vehicle running. You then work on fine tuning your maps to suit your
engine exactly. An air:fizel ratio meter and a dyno make tuning easiest, but many people use the
traditional method of "seat of the pants" feel and tuning by ear, possibly checking spark plug
colour as an indication of fuel mixture. Whichever method you use, you will find that the ability
to instantly change mixtures by the stroke of a key, or the twist of a knob, will make tuning
your Haltech system far easier than tuning a carburetor or mechanical injection
system,and with much better results.