i have a air/fuel gauga and it has a red,blackand gray wire. where do i hook them up at? someone at a meet said some purple wire? thanks

 

i think you have to have a wideband sensor, i tried hooking one up in my car all i got was a light show, never stayed anywhere too long.

 

can any wideband fit for my s/c swap?...i found an aem uego wideband on ebay for 219.00

 

its suppose to jump back and forth between lean and rich. ^^^^

 

Red is power, black is ground, and gray is a signal wire. But you do need a wideband sensor. What type is it? If its a AEM gauge then it should come with 2 wireing harnesses. one to go to the wideband sensor and one for hooking it up to 12v's. From the little bit of info you gave your gauge righ now is usless. Sorry

 

unless you just want a light show, get a wideband. The AEM will fit just fine.
And I think thats plenty of info. I highly doubt he has a wideband gauge. Im sure he has just a plain old narrowband AF gauge. He just asked if the wideband would work, which it will

 

He asked where to hook up the wires to? And as of now no where. Needs a wideband sensor. And Depending on which brand of AFR gauge he might need other wiring or maybe not. AEM has two harnesses, Dynojet also has two I belive and a control modual. So a little more info would be helpfull cause if its a AEM I have an extra harness I might be able to get to him.

 

you can install a narrowband gauge on a car...it just wont do much

also, i believe all widebands have atleast 4 wires