like the topic states, which wire is it?

 

white wire on the 02 sensor

 

it's one of the two white/red wires on the ecu, i jus did my a/f gauge on my 95 ls about 2 weeks ago, if you still can't figure it out i'll take a picture of the ecu w/ the wire

 

thanks, for your help. see we hooked this a/f gauge up last year, but we might of done it wrong. Its odb1 and we hooked it up right i think, but it doesnt work liek any a/f gauge ive seen. it doesnt bounce back and forth, it just stays lean and goes to stoich and every now and then shows a dot of green. is it hooked up wrong?

 

It's suppose to bounce back and forth. It's pretty much useless until you're at WOT. It should be in the green and maybe a little in the stoich(orange).