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Old 07-05-2011, 11:39 PM   #1
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Default Questions about MS3X and flyback

Hi All,

I got my megasquirt upgraded from MS2 to MS3. It is still using the old MS2 inout and outputs. I want to start running the idle valve and the hi-z injectors (in sequential mode). I was wondering if I need to use a flyback protection diode for the idle valve? Do the injection drivers have flyback protection driver?

What are the MS3X users doing?

TIA.
-Raj
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Old 07-06-2011, 12:33 PM   #2
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the expander has flyback protection for the idle valve already.
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Old 07-06-2011, 12:40 PM   #3
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Hi Raj,

If the idle valve is already driven by FIDLE, there's no need to move it to the Expander board. You do not need to add flyback protection to the Expander; it's already in the hardware.
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Old 07-06-2011, 12:49 PM   #4
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Thanks guys. I am using Abe's 99-00 pnp adapter card which has all the high currebt drivers and input conditioners. I am trying to get rid of it, hence the move to the MS3X idle output.

-Raj
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