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13 connect the trigger sensor, 14 connect the ecu – Haltech F10X User Manual

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F10X Manual

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1.3.13 Connect the Trigger Sensor


The Trigger is used by the ECU to determine Engine Speed and Position.

When connecting the trigger (crank or cam position) sensors it is important to identify the
type of sensor being used to measure engine speed and position from the following options:
Optical, Hall Effect or Coil Negative.

Optical and Hall effect Triggers

Optical and Hall effect triggers behave in a similar way and are treated the same by the ECU
and the term “Hall Effect” should be taken to include Optical triggers.
Hall Effect triggers generally have 3 connections: power, ground and signal and the output of
the sensor is a square wave digital signal.

Coil Negative Trigger

The F10X can be triggered by the signal found on the negative side of an Ignition Coil. The
F10X has a sole purpose input wire for this signal called “Negative Coil” which is Pin 36 on
the F10X ECU. Please make sure that in the Trigger Setup page, the Trigger Type is set to
Coil Negative if this type of trigger is to be used.

Tacho Output Trigger

Some popular ignition systems have a tacho output signal, which can be used to trigger the
F10X through the Coil Negative Trigger Input. It is necessary to use this tacho output if the
ignition system used is a Capacitive Discharge Ignition System with multiple spark function.

For more information on trigger systems Refer to Appendix E

1.3.14 Connect the ECU


The ECU can now be connected, be sure to engage the clip on the main connector. The
system can now be tested as described in the following chapters.