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Need help finding the ECU Tach wire

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Old May 18, 2008 | 07:58 PM
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jlf04
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Joined: Nov 2007
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From: Harlem Georgia
Default Need help finding the ECU Tach wire
I just bought a MSD digital window switch for my 04 C5 & I need to find the ECU tach wire. Can someone tell which wire is the right one.
Thanks,
Jason
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Old May 18, 2008 | 09:42 PM
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c5streak
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From: Eddy Texas
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Manual shows "connector 2, pin 10, white wire, circuit 121, engine speed signal". Connector 1 doesn't use pins 8-10, so it shouldn't be hard to find.
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