Haltech E6K - Manual (Page 102)

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Switch On Temperature
The inlet air temperature that must be exceeded to switch the fan on.
Switch Off Temperature
The temperature the inlet air must drop below before the fan will be switched off. This
parameter should be at least 5° lower than the Switch On temperature to prevent the
fan from switching in and out repeatedly.
Figure 16.7. Example circuit for an Intercooler Fan.
16.8 Shift Light Illumination (SL)
The E6K can be used to activate a shift light or a piezo buzzer when engine speed exceeds the
programmed activation speed.
To use the shift light function, you will need the following:
A dashboard lamp or buzzer;
E6K programming software and cable.
The lamp or buzzer should be wired to +12V on one side, and the other to the ECU. The lamp
used must not draw more than 0.5 amp of current (i.e. a 6 Watt globe). Alternatively, a high
intensity LED may be used. If so, use a series resistor of 330 ohms to limit the current through
the LED to around 40mA.
Once the wiring has been installed, run the E6K programming software and go to the Options
page. Select the Shift Light function on the appropriate output and set the value as desired.
16.9 Auxiliary Fuel Pump (AP)
Running two fuels pumps continuously, or else a single very large flow-rate pump (if one is
available) means excessive noise and heating of the fuel. A street vehicle with very high
potential output will not need a large fuel supply at all times. The second pump would only be
activated when load demands require that the extra flow be available.