Haltech E6M - Manual (Page 26)

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1.3.10. Electronic Control Unit (ECU)
The Haltech E6H/E6M is not designed to be waterproof. It is desirable that the ECU be given
as much protection from the environment as possible. It is recommended that the ECU be
mounted inside the passenger compartment, either on the firewall, under the dashboard or
under the passenger seat.
The ECU has four mounting holes that allow it to be mounted to most flat surfaces. In
extreme cases of vibration, the ECU should be mounted on rubber anti-vibration pads. When
mounting the ECU remember that the communications connector on the loom should remain
accessible for ease of programming.
1.3.11. Flying Leads
Locate and connect the following flying leads.
Black (Ground)
Locate a good chassis ground point and connect the black wire.
Red
(Battery Supply +12V) Locate a source of continuous +12 volts and connect the red
wire. Connecting direct to the positive battery terminal is suggested.
Grey
(Ignition Switched +12V) The grey wire is used to control the operation of the Haltech
E6H/E6M power relay. It needs to be connected so that it sees 12V only when the
ignition switch is on and during cranking. This wire does not draw a large amount of
current (< 0.5A). Do not connect to the accessory outputs of the ignition switch.
Green
(Aux In) The green wire is used as the Aux In channel. If you wish to use the Aux
Input for NOS, Torque Converter control, a turbo timer, anti-lag switch, etc consult
Section 4 – E6H/E6M Inputs and Outputs, Section 13.1 for further information. The
following diagram is an example of how to wire the Aux In circuit:
Aux In
NOS, Anti-lag, Flat-Shift
Switch, etc
GND
Orange
The two orange wires are used to operate the fuel pump. When the Haltech E6H/E6M
ECU wants to operate the fuel pump it will close the fuel pump relay connecting the
two orange wires together. The diagrams show two examples of wiring the fuel pump.
Do not add extra relays to the fuel pump circuit.