Author Topic: Help with tach wire  (Read 793 times)

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Offline Arcticman

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Help with tach wire
« on: March 21, 2019, 11:09:31 PM »
I have a 76 Trans Am that Iím slowly putting together. I bought it from a guy who saved it from a barn. The previous owners put a 454 in it and hacked the wires up. I have it almost back together, but I canít figure out which color wire runs from HEI dist to tach. I have a 78 that Iíve found most of my answers from but the tach wiring are different. I have a service book for a 77 and it doesnít show the tach wire. Any help would be appreciated

Offline Aus78Formula

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Re: Help with tach wire
« Reply #1 on: March 22, 2019, 02:42:40 AM »
On most later models it's a very simple harness. A Pink/Black wire comes off the A/C Heater 25A fuse terminal, and the second line which could be plain orange or white, runs to the tach. Those 2 wires plug into the gauge rear.