Tach wire off the PCM?

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Oct 21, 2003 | 09:38 AM

TWS

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From: Austin, TX

Tach wire off the PCM?

Can anyone tell me which wire off the PCM on an LT1 car is the tach lead? I need it to hook up an RPM window switch. If it makes any difference, it's a '94 Z28.

THANKS!

Oct 27, 2003 | 07:29 AM

TWS

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Oct 27, 2003 | 05:48 PM

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From: Anderson, Indiana

PCM RED connector, position 13, white wire.

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91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

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