o2 senor wire for guage

[hmotorpimpn05]

i am trying to hook up an air/fuel ratio guage for my civic with a b16a engine in it but i dotn know which wire off of the o2 sensor to hook it in to. theres black white yellow and green and info or suggestions would be greatly appretiated

[tomsindahizouse]

i tried to get 02 sensor info a couple days ago and got no help.

[CivicSpoon]

White wire (D14 on the ECU), it's the "Primary O2 Signal" wire.

[CivMoeEJ8]

Yeah, it's the white wire on the O2 sensor.

[snowman2005]

dont those a/f guages suck unless u have a wideband o2 sensor

[CivMoeEJ8]

They don't suck, they just aren't nearly as accurate. It will tell you if you a running lean or rich at WOT...they aren't very good to use for tuning

[tomsindahizouse]

oh ok.

[GScivic7]

Originally Posted by CivMoeEJ8

They don't suck, they just aren't nearly as accurate. It will tell you if you a running lean or rich at WOT...they aren't very good to use for tuning

An EGT gauge would give you a better idea of your air/fuel ratio at any rpm. Running colder = rich and hotter = lean I believe.

[97CivicX]

Running colder = rich and hotter = lean I believe.

thats right. im gonna take a wild guess and say you bought the cheapest ebay a/f gauge you could find, in which case, you probably just wasted your money seeing as you have no use for it. save your money and buy a wbo2 if you're really that interested in tuning your engine.

[hmotorpimpn05]

Originally Posted by 97CivicX

thats right. im gonna take a wild guess and say you bought the cheapest ebay a/f gauge you could find, in which case, you probably just wasted your money seeing as you have no use for it. save your money and buy a wbo2 if you're really that interested in tuning your engine.

i actually got it frim a friend of mine, its an autometer a/f ratio guage with the carbon friber in the back, idk how much its costs brand new but i didnt pay anything for it

[97CivicX]

autometer doesnt make the greatest gauges.. and its still not gonna do a hole lot of good for you

[CivicSpoon]

He didn't say he was going to use it to tune the engine or anything. To see if you're running lean or rich it will work fine; it's not going to be 100% accurate but it will give basic information. It's like a stock tachometer, it's always off by a little bit but most people still use it to give them an idea.

[tomsindahizouse]

thats correct