1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

AFM Voltage

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Old 11-25-10, 06:42 PM
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AFM Voltage

Anybody know what voltage the AFM is on a JDM 12a Turbo motor, maybe the same as the US series 3 13b motor?

I am looking at an aftermarket ecu to get rid of the AFM but it needs 0-5v, not 12v
Old 11-26-10, 09:02 AM
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I'm not sure I understand your question. Are you asking whether the 12A turbo has 12V based AFM or a 5 volt based AFM?
Old 11-26-10, 06:14 PM
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Yes, because the aftermarket ecu only accepts a 0-5v feed
Old 11-26-10, 08:35 PM
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Not sure if this page will answer your question, but there's good info about the GSLSE AFM and The S4 AFM.

http://www.jimrothe.com/mazda/afm_project/index.html
Old 11-28-10, 02:06 PM
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the 12A-T uses a 0-12v based afm, like the GSL-SE.
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