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Old 30-08-2013, 12:01 PM
Richard L Richard L is offline
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Join Date: Oct 2003
Location: England
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Default Re: 2011 Mazdaspeed 3 | HFS-4 Install

It is probably a single/train of pulses send to a piezo sounder. It might work. The HFS4 has a secondary PWM input that may be used to spray based on the pulse. Need some modification.
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