Haltech E8 - Manual (Page 34)

Haltech E11/E8 Instruction Manual
• The Following Filter and Gain settings are only available in Reluctor Mode
The ECU needs to see a clean Trigger signal before it can start controlling the engine. If you are
having problems you have the option of adjusting the signal quality. In cases where the signal is
too weak and or not enough signal strength, you can use the Gain settings to boost the signal. In
some cases a high Gain setting may amplify noise, the same applies to the Filter Level adjustment
if there is interference from Spark Noise the Filter Level may need to be used, ( too high value
may cause problems at high RPM). Experiment until you get a stable RPM reading and check the
readings from Trigger Diagnostic Data Page (Under Data Pages Menu).
Typical triggering symptoms are… if a Home signal has false triggered, it will cause
synchronising problems and loose track of the start of the Engine cycle, a missing Trigger signal
may loose count of which cylinder is to fire next. The end result can lead to a engine misfiring,
running rough, backfiring hard to start or not starting at all.
If you cannot get satisfactory results with the Filter/Trigger settings, contact your Haltech
dealer and enquire about an external Reluctor Adaptor.
• Trigger Filter Level – This filter setting allows you to clean up the Trigger signal before its
processed by the ECU. You have the option of selecting a number from 0 to 2, 0 = no filter, 1 = low
filter, 2 = high filter.
• Home Filter Level – This filter setting allows you to clean up the Home signal before its processed
by the ECU. You have the option of selecting a number from 0 to 2, 0 = no filter, 1 = low filter, 2 =
high filter.
• Trigger Gain Control – This Gain setting allows you to amplify the Trigger signal, the gain of the
input stage to this reluctor can be set using this slider control. Start with low values and gradually
increase the gain until you get a steady trigger signal throughout the rev range that you intend to
operate your engine.
• Home Gain Control - When the internal reluctor adaptor is used to process the Home Input signal,
the gain of the input stage to this reluctor can be set using this slider control. Start with low values
and gradually increase the gain until you get a steady Home signal throughout the rev range that
you intend to operate your engine. An unsteady Home Signal can lead to drastic changes in timing
on multi-tooth triggers so check this with a timing light with Ignition Timing Lock turned on while
you rev the engine.
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