Haltech E6A - Manual (Page 25)

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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. The best
spot is direct to the battery negative terminal.
Red - (Supply 12V) Locate a source of continuous 12 volts and connect the red wire.
Connecting direct to the positive battery terminal is suggested.
Grey - (Switched 12V) The grey wire is used to control the operation of the Haltech E6A
power relay. It needs to be connected so that it sees 12V only when the ignition 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.
Orange - The two orange wires are used to operate the fuel pump. When the Haltech E6A
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.
1.3.12. Install and connect Optional Idle Speed Motor
If you are not using the Idle Speed Control, tie the motor connector back neatly in the engine
bay. If the engine has a suitable Idle Speed Motor, connect it now. If you have to install the
motor, install and connect it now. For details on how to install and plumb the Idle Speed
Motor, see Chapter 14.