Thread: Ecu Speed Pin
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Old 11-21-2006, 07:34 AM
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Phil & Belha
 
Join Date: Aug 2001
Location: Alcyone Limited, Buckinghamshire UK
Posts: 2,671
Yes. That's the one.

It's a 5 volt square wave, the frequency of which is proportional to your speed. Four cycles per revolution of the sensor IIRC.
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