[SpectorV]

I know it goes on the o2 sensor but which wire on an 99 up mustang?

 

[SpectorV]

lol yea its not my cars its a guy i know he watns me to help him put a a/f gauge in his car. so red/black, i can see which wires are hot to figure out the ground but .... will there only be one hot wire? will it mess up the gauge if i stick it on the wrong wire? i have read two posts that have said red/gray or red/black wire is the signal/power wire? is it the signal or the power wire i need to splice into.

 

[SpectorV]

alright, if you get this before you do, i hope you do lol, the guy aint getting us to help him tonight, i think he is gonna get some diff gauges.... but either way we need to know on this forum, no one else does....

 

[SpectorV]

good info we need to sticky this somewhere about the basic install of each type of gauge its very hard to get info on an a/f gauge as you have seen lol thanks for checking though now we know.

 

[SpectorV]

i have heard they are mainly a light show that when you are so lean you have a problem the gauge will start to read lean, and by then its to late.