This is just a short FAQ to describe the wiring layout for the 52mm Greddy EGT gauge, since the directions come in Japanese only!
There are two separate harnesses:
A two wire harness with a red and white wire. This is hooked up to the probe and should not be confusing.
And a 4 wire harness with red, black, orange, and white wires.
RED
= Constant power
BLACK = Ground
ORANGE = Ignition power
WHITE = Lighting
I know this is a short FAQ, but there are other FAQ's on installing Gets, and you can visit Tom's VFAQs page