I'm in the process of finishing wiring my truck. I added a 327 and swapped the carb for TPI. I also installed a set of bedee 5" guages. I hooked up the speed signal sender (3 wires, black, red, & white) over the weekend but noticed that the TPI harness has a two wire hookup(grey & yellow I think) thats supposed to be spliced into the speed sensor. Can anyone tell me which wire goes where?
With most aftermarket items, black is ground, red is switched power, and white is a control wire....tells things when to work. Look in your manual or on the company's website for actual color uses.
It's not the sender itself, I have that taken care of. It's the wires coming from the TPI harness that are supposed to hook up to it.
