lost sync

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Old Aug 1, 2011 | 11:01 AM
  #1  
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Default lost sync

I'm getting a lost sync reason:38
So far I've only seen it happen in boost and higher boost than wastegate level. I know it 4g63 code related but I dunno what I should look into to fix it.

My best bet is the crappy wiring harness, to make a new shorter one with better wiring.

ms2 pcb v3
Old Aug 22, 2011 | 02:57 AM
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Optoisolator on the cam input circuit?
Old Aug 22, 2011 | 06:28 AM
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whats the spark gap like? what coils?
Old Aug 22, 2011 | 07:43 AM
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I went by the miataturbowiki guide so I have to check again but not sure if there is a optoisolator on the cam circuit, I don't think so.

Brain, stock coils, will have to check what gap is, whatever stock is out of the package for platnium ngk spark plugs
Old Aug 22, 2011 | 03:30 PM
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probably way too large for boost. gap them to like .025"-.030"
Old Sep 19, 2011 | 11:08 PM
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gapped down to .033 from .045 still getting loss of sync 38
Old Sep 20, 2011 | 12:24 AM
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On the MS2, you need the optoisolator on the cam input circuit, like I said above.
Old Sep 20, 2011 | 07:50 AM
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you mean 2nd trigger like in here
http://www.msextra.com/doc/ms2extra/...4g63.htm#2hall
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