Haltech E8 - Manual (Page 39)

Haltech E11/E8 Instruction Manual
Rising Edge Triggered - Some Honda and CDI style ignition modules are known to be rising edge
triggered. These modules expect to see a naturally high signal. When the voltage falls to 0V, the module
charges the coil. When the voltage returns to 12V, the spark is fired.
Figure 34 - Ignition Spark Edge Rising
Trailing Spark Edge
This parameter is only available when in rotary mode. This parameter is the same as Ignition Spark Edge,
but applies only to the trailing spark. The leading spark for a rotary engine is setup with Ignition Spark
Edge. This feature allows for different ignition systems to be used on the leading and trailing coils.
Dwell Mode
This mode must be set to the type of ignition module that it to be used on the engine, almost every ignition
system that comes from a modern vehicle (i.e. an engine that has EFI as standard) uses constant a
constant charge ignition system.
Trailing Dwell Mode
This parameter is only available when in rotary mode. This parameter is the same as Dwell Mode, but
applies only to the trailing spark. The leading spark for a rotary engine is setup with Dwell Mode. This
feature allows for different ignition systems to be used on the leading and trailing coils.
Ignition Map Selection
This selects which map to use. If an external input is used to select the map, then this setting is ignored.
Ignition Trims
Allows ignition to br trimmed either as an overall trim, or as an individual cylinder trim.
Zero Throttle Map Enable
Allows for a seperate ignition map to be enabled when the engine's throttle is closed.
Copyright © Haltech 2008 Page: 39
GND
+12V
Voltage Ignition Signal Pulls
to Ground to Charge
Coils
Waveform
Naturally High
Note : Take care when setting the ignition spark edge, incorrect settings will damage the
ignition system.