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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Tach hook up

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Old Mar 7, 2009 | 01:15 PM
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Default Tach hook up
o im hooking up my tach on my 93 camaro....where does the green wire go to get the rpm readings it says the green wire on the coil but im not sure what wire and where at ...Input please...thanks
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Old Mar 7, 2009 | 01:25 PM
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I used the White wire after the tach filter. it is tapped up in your harness going to the coil.
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Old Mar 7, 2009 | 01:33 PM
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by tach filter are you talking about the lil box looking thing or what
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Old Mar 7, 2009 | 01:34 PM
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Yep, That is what I went off of
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Old Mar 7, 2009 | 01:38 PM
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ok and you mean after the filter as in going to the opti or on the side going to the firewall harness
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Old Mar 7, 2009 | 01:55 PM
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Run it right off the coil, works best I feel on our non PCM cars (we're ECM remember). It's the white white, I'd tap in after the (what I assume is) a filter.

Though for anyone reading this with a 94+ it's PCM connector pin A13
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Old Mar 7, 2009 | 03:05 PM
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can someone post a pic i looked at the wires it a bit confusing
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Old Mar 7, 2009 | 03:15 PM
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I just swapped out my harness but if no one does ill take a pic on the old harness when I get home ( be a few hours at work )
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Old Mar 7, 2009 | 04:03 PM
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ok thanks for the help
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Old Mar 7, 2009 | 09:35 PM
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There's 4 wires on the coil. I think it's 2 reds a black and a white. Either way, it's the white one
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Old Mar 7, 2009 | 10:05 PM
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Sorry its a bit late been working on putting my new system in

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Old Mar 7, 2009 | 11:07 PM
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Might jsut be the bad pic, but that doesn't even look like the coil plugs.
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Old Mar 8, 2009 | 08:58 AM
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I never said I did thats where I had mine and it worked
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Old Mar 8, 2009 | 04:11 PM
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Originally Posted by cgroh89
I never said I did thats where I had mine and it worked
Ah I see, my bad! I have no clue where that is at though lol
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