Ok I just bought my a/f gauge for my 94 integra ls. I need to know where the O2 sensor is that I hook up the grey wire to. I am going to run the ground to the fram of the car and the 12v power source to a fuse but I have no freaking clue where the O2 sensor wire is. Thanks for the help.

 

It should be on the exhaust manifold right before it joins the catalytic converter.....
at least that's where mine is

 

 

don't, its a waste of money. real A/F gauges cost $1000's. the silly autometer one that people spend their money on is a joke. Ask any real tuner and they will tell you the same. The very popular A/F gauge you see on these boards are so far off that even if something WAS wrong, it would be too late. If you must have a gauge in the cockpit, and you are still NA, go with Oil pressure (electronic).

 

I was told that a mechanical oil pressure gauge is more accurate than the electric/electronic ones????????

 

i also need help on how to hook up my oil pressure gauge as well!!! dont know where to run the oil line to...

 

its true
the real ones is $$$$$$$
and you dont have to go that far into the engine
tap into the computer better
plus oil pressure gage its better

 

i also am installing an A/F gauge in my 95 LS and i was wondering if anyonw knew where the hookups were on the ECU...i forgot which color wire is the A/F on the ECU.

 

you hook up to the o2 sensor in the cat

 

check the
pin out from this website

http://www.g2ic.com

 

I just installed the gauge and it works better then I thought it would. I hooked the 3 wires up to the ECU directly. Lucky for me I already had the wires spliced from when I once has my SAFC installed. I used the brown ECU wire as my negative, Wire right above the negative for the 12v power source and the wire on the upper row 3rd from the right side as my O2 sensor. I believe it was yellow/white but not certain.

 

i dont have an 02 sensor on my cat(or not that i know of)...i thought the wires had to be spliced with the A/F wires on the ECU...???

 

doesnt an AFC tell you the a/f ratio

 

I used to have one dont any more though.