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Air fuel ratio gauge

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Old 04-23-2008 | 04:14 AM
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alicat's Avatar
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From: tasmania australia
Car: 1985 z28 camaro
Engine: 305 lg4,edelbrock,3"air cleaner.k&n
Transmission: turbo 700r4 w/b&m megashifter
Axle/Gears: Stock.
Air fuel ratio gauge

Can a air fuel ratio gauge be spliced into the wire for the o2 sensor on a cc qjet,and still work ok,or will it effect the signal to the computer?

Thank's,
Alicat.
Old 04-23-2008 | 02:47 PM
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Axle/Gears: 12B-3.73/9"-3.89
You can, but the meter has to be very high impedance. Also, the O2 sensor is narrow band, so the data will be of limited usefulness.
Old 04-23-2008 | 02:50 PM
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Re: Air fuel ratio gauge

What about on a non-computer Holley 650 DP?

Just power wire, ground and O2?
Old 04-24-2008 | 01:39 AM
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From: tasmania australia
Car: 1985 z28 camaro
Engine: 305 lg4,edelbrock,3"air cleaner.k&n
Transmission: turbo 700r4 w/b&m megashifter
Axle/Gears: Stock.
Re: Air fuel ratio gauge

Originally Posted by five7kid
You can, but the meter has to be very high impedance. Also, the O2 sensor is narrow band, so the data will be of limited usefulness.
Thank's,I would get a wideband kit,but they are so expensive,and once it's tuned,i probaly would'nt really need it.

Alicat.
Old 04-25-2008 | 12:24 PM
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: Air fuel ratio gauge

That's what I thought Alicat, but if you're got a buddy with a carbed car, or your next project car, etc. It's really difficult to tune accurately without a wideband. Ask some of the real hardcore racers on here, and they use widebands. (unless they're older than the statue of liberty, and they still read their plugs like true hardcore racers )

I bought the summit house brand kit. Comes with a gauge and everything. I bought an a-pillar pod setup to put it into. Anyway, summits kit is $189 or so. The pod for the a-pillar was about $40 and i'm off to the races.

Demon355 - Yes, you can wire it up that way, but power should be switched so it turns off when your turn off the car. That's for a heated O2 sensor, and like Five7kid said, it's of limited use. Grab a 5 wire (ie. wideband kit) and use one of those. It's prewired up I think, so you still just hook up power, signal and the "brains" then just read the output signal with your gauge.
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