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hey peeps

ive just done a few searches and i cant find the info im after, so i thought id ask.

im trying to hook up my air fuel gauge and i dont know which is the signal wire on the o2 sensor. the autometer instructions say i have to splice the wire after the clamp thing but is that nessecary? the wire that i spliced after the clamp adapter thing is a thick wire with copper colour wire in the middle, silver wire around it then the clear sort of heat shrink around it. is this the right wire?

if anyone can give me any hints id appreciate it heaps!!!!

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https://www.sau.com.au/forums/topic/51253-air-feul-ratio-gauge/
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Hi i fitted one of those to my car but it got stolen with the rest of my gauges anyway the wire i had it joint to was the middle wire on the plug it was a brown wire if you peel back the black stuff that covers the wires it should be a bit thicker than the other two (not the wires on the sensor) hope that helps

yep sic thats the wire i am trying to use, but it has like 2 different colour wires on the inside, like silver and copper, so i just join it to both then hey?

also does the gauge actuall start to work right away or does the car have to heat up 1st, casue ive hooked it all up and the gauge didnt work???

thanks for the help jason

just one last question- i have plugged everything in, and when its just the + and - wire in, there is a green led lit on the last point closest to the end of the rich section. then when i plug in the o2 sensor wire the screen goes blank, even wen the car is on. do i have to be driving for the thing to work or have i done sumthin wrong?

ok i got it all hooked up now, but wats it supposed to look like, about 4 leds light up at a time going up and down the face wen u rev it and on idle sumtimes, it just hits rich. but at night wen i turn the lights on, it read a couple of leds short, is this supposed to happen?

let me know if u think it is functioninf wrong.......thanks for the help so far:)

i tihnk there should only be one led on at a time, considering its measuring a ratio, not a range of ratios, the led will move rapidly though

the gauge should work alll the time, driving idling, warming up etc.... i believe the oxy sensor doesn't work effectively till its warm and hence the ecu ignores the signal from it when u cold start, but once warm u should get semi accurate readings regardless of wheter u r drivign / idling / just starting

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