Haltech E6M - Manual (Page 7)

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Introduction
Congratulations on your decision to install a Haltech Engine Management System to your
vehicle. Haltech EFI systems have been successfully installed on thousands of vehicles, from
power off-shore boats to twin-turbo Ferraris, from pylon racing aircraft to jet skis and
snowmobiles. Over the past decade, many motorsport enthusiasts have discovered that the
Haltech computer is easy to use and gets the job done correctly - that job being to reliably
make a lot of horsepower and torque in an engine by enabling users to precisely control
ignition timing and fuel-air mixture. Precise ignition and mixture control also 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
supercar builders in the world use Haltech equipment for the same reasons that Haltech is
popular with motorsports 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.
This Manual
This manual covers the installation and operation of the Haltech E6H, E6M, E6H-8 and E6M-
8. The E6M differs from the E6H in that it is equipped with an onboard reluctor adaptor that
allows it to be triggered by reluctor (magnetic coil) trigger systems. The E6H-8 and E6M-8
differ from the standard units in that they can drive a greater number or injectors. In the
manual there are sections that will be relevant to E6M and E6M-8 installations only and
sections that will be relevant to E6H-8 and E6M-8 only, these can be identified by the
heading: “E6M and E6M-8 only” or “E6H-8 and E6M-8 only”. The text associated with
these headings will be indented for the remainder of the relevant text.
Note: In the E6 family of products there is the Haltech E6K, which has a
separate instruction manual. The E6K is not covered in this manual. However
some illustrations of fuel maps etc. in this manual will show “E6K”. The E6K
is identical to the E6M-8 except that it has 4 programmable PWM outputs and
an on-board barometric compensation sensor.
Installation Overview
The Haltech E6H/E6M system utilises a special-purpose programmable microcomputer
designed for engine management. The E6H/E6M 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. In the course of the installation, you will mount four electronic engine
sensors, two for temperature, one for throttle position, and one to sense vacuum/pressure. You
will run the wiring harness through the vehicle, connecting the 12V, ground and signal wires,
and plug the harness connectors into the engine sensors and fuel injectors. An ignition output
module will be mounted in the engine bay and connected to the harness. Finally, you will