I'm trying to intall an a/f guage and boost guage in my 91 civic. I bought both used and dont have instructions with them.

Could anybody be soo kind and tell me what the two wires run two from both guages? I'm assuming ground and power or accesory, but i'm not sure?

I tried searching but couldnt find what i was looking for. Thanks

 

what type of gauge is it? My autometers have a letter by each pin for what it goes to.

 

a/f is autometer and it has 3 wires, one is purple

boost is greddy or blitz, i cant remember, and only has 2 wires

 

purple goes to white of o2, red goes to switched power, black goes to ground.

 

same for boost - in this case yellow goes to switched power?

 

I would think so.. is that just for lighting or is it an electric gauge?

 

i gues just for lighting, its a mechanical guage

 

yea, then I would figure that yellow goes to the illumination. You can find a male connector on your fuse box to use if you wish, for both applications.

 

would illumination only go on when light switch is on?

 

you got it