Shift light problem

footbrake

Dragway Regular
Feb 8, 2006
830
0
0
Buffalo, NY
Wiring my proform shift light and ran into a problem. Basic red,green,black wires. Power,trigger,ground.

Ok ,wanted to wire it into my tach wires ,for simplicity as tach wires are also red ,green,black. Why not, right?

Start the car and shift light stays on. Should only momentarily light when power is applied and go off until desired rpm is reached

What's causing this. Do I have to wire it seperately? thanks
 

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