Air fuel guage

irishsetter · Post by **irishsetter** » Tue Jan 11, 2005 1:40 am

My roommate is giving me an air fuel guage and I have know idea where to connect it to. It is a autometer guage and it has just three wires that come out of it. Can some one help me?

boostjunkie · Post by **boostjunkie** » Tue Jan 11, 2005 2:11 am

Black, red, and green, I suppose?

My guess would be:
black=negative
red=switched power
green=front o2 sensor.

BAC5.2 · Post by **BAC5.2** » Tue Jan 11, 2005 10:41 am

I agree with Jason. Black is usually ground. Red is usually power (ACC). Green would likely be the O2 wire.

irishsetter · Post by **irishsetter** » Tue Jan 11, 2005 1:59 pm

Very cool thank you. I heard that this is considered not a true A/F guage. Is this true?

91White-T · Post by **91White-T** » Tue Jan 11, 2005 5:00 pm

Its somewhat useful, but its mostly just pretty lights. You would need a wideband O2 sensor and gauge if you wanted to know exactly whats going on, but even a narrow band gauge is better than nothing...

irishsetter · Post by **irishsetter** » Tue Jan 11, 2005 9:00 pm

So what i have is considered a narrowband guage right.

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Air fuel guage

Air fuel guage