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tach no workie

1188 Views 3 Replies 2 Participants Last post by  LsCivic
So I have everything working on my 91 civic with an a2 except the tach. My scan tool sees it but my tach doesn't move at all. I used the hybrid racing universal harness and tapped it into pin 12 and nothing. Is there something I am missing?
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Which speedo are you using?

If it's stock, it's not going to work unless you use a d series vss from an eg.
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