Tomgar 10 Report post Posted May 9, 2017 Can anyone tell me the color code on the dash harness pigtail for the factory 69 tach?. The pigtail from the tach is black and red. There is nothing on the harness that matches it. Thanks in advance. Quote Share this post Link to post Share on other sites
Midlife 814 Report post Posted May 10, 2017 It should end up in a male/female molded two pin bullet plug. It's mate will be a female/male 2 pin bullet plug, with the female having 2 wires (red/yellow and red/green) and the male being the pink resistor wire. If the tach bullet plug has been cut off, black goes to the pink resistor wire and red goes to the female bullet side (2 wires). Quote Share this post Link to post Share on other sites
