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Air Fuel Ratio Gauge

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Old 12-20-2006, 10:07 PM   #1
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Default Air Fuel Ratio Gauge

Has anyone ever put an air to fuel ratio gauge in their car? If so i know you need to hook it up to the o2 sensors ,but how do you do it. Do you have to connect it to both o2 sensors?
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Old 12-20-2006, 10:19 PM   #2
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Default RE: Air Fuel Ratio Gauge

Just wire your possitive and negative wires and splice into the black wire on the O2 sensor
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Old 12-20-2006, 10:22 PM   #3
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Default RE: Air Fuel Ratio Gauge

I'm glad you replied cause ive seen your car and the gauges, but so it comes with two wires. Do i put it into both, and im going with the ultra lites and when it is night time how do i wire them to come on when i turn on the lights?
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Old 12-20-2006, 10:24 PM   #4
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Default RE: Air Fuel Ratio Gauge

I have Sport comps and as Far as I know it has 3 wires Red,Black and Purple. The purple is your signal wire.
The gauge doesnt light up the LED's light up to show fuel ratio
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Old 12-20-2006, 10:26 PM   #5
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Default RE: Air Fuel Ratio Gauge

Yea,ok but what about the others, im getting oil press and water temp. (I have no boost so i cant do boost gauge) Those will still light up right.
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Old 12-20-2006, 10:47 PM   #6
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Default RE: Air Fuel Ratio Gauge

Yes
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Old 12-20-2006, 11:05 PM   #7
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Default RE: Air Fuel Ratio Gauge

Cool, and i know i ask tons of questions, and i just apreciat all the help all of have given me. Thanks
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Old 12-21-2006, 04:09 PM   #8
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Default RE: Air Fuel Ratio Gauge

Quote:
ORIGINAL: Black Snake

Just wire your possitive and negative wires and splice into the black wire on the O2 sensor
I'm having the same question. I think I've tapped into the wrong wire. The black wire that you speak of for tapping into, that is on the O2 side of the pigtail, correct?

Oh, my car is an 87 GT.
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Old 12-21-2006, 04:51 PM   #9
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Default RE: Air Fuel Ratio Gauge

no one has bothered to mention that a narrow band o2 gauge is worth absolutly nothing and will not give you any information other then the o2s are working or not. you cant use it for tuning or checking to make sure the car is running correctly because th guage is constantly jumping around. its a glorified light show
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Old 12-21-2006, 05:06 PM   #10
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Default RE: Air Fuel Ratio Gauge

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ORIGINAL: luckythirteen13

no one has bothered to mention that a narrow band o2 gauge is worth absolutly nothing and will not give you any information other then the o2s are working or not. you cant use it for tuning or checking to make sure the car is running correctly because th guage is constantly jumping around. its a glorified light show
I was just about to mention that. Chances are, if you aren't sure how to hook it up, then you didn't know that you will want to get a wideband sensor. It's pricey, but the gauge isnt really worth it without the wideband sensor.

Then again, I don't see a need for the gauge unless there are some major engine mods.
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Old 12-21-2006, 08:01 PM   #11
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Default RE: Air Fuel Ratio Gauge

Quote:
ORIGINAL: luckythirteen13

no one has bothered to mention that a narrow band o2 gauge is worth absolutly nothing and will not give you any information other then the o2s are working or not. you cant use it for tuning or checking to make sure the car is running correctly because th guage is constantly jumping around. its a glorified light show
OK I'll call bs like I always do on this topic. Does the gauge funtion well enough for tuning. NO! Does it function well enough to let you know there is a lean/rich issue, YES! Mine has alerted me a couple times there was an issue that either poor drivability or the cel didn't show up.

So bust on them all you want, I'm glad I have one.
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Old 12-21-2006, 08:06 PM   #12
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Default RE: Air Fuel Ratio Gauge

If you don't have cats, can you still use the air/fuel ratio gauge? Because I plan on getting one for my car also.
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Old 12-21-2006, 08:10 PM   #13
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Default RE: Air Fuel Ratio Gauge

Even without cats, you still havetwo O2 sensors that hook up to your O/R pipe.
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Old 12-21-2006, 08:17 PM   #14
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Default RE: Air Fuel Ratio Gauge

Yes its the black wire on your O2 sensor pigtail. And yes it work fine, and No it doesnt work for tunning. But it can alert u if ur too narrow or rich
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Old 12-21-2006, 08:46 PM   #15
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Default RE: Air Fuel Ratio Gauge

wideband FTW!!!
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Old 12-21-2006, 09:51 PM   #16
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Default RE: Air Fuel Ratio Gauge

So does a narrowband sensor has a very small range that it reads, so the numbers are all over the place and mustangs use wideband?
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Old 12-21-2006, 09:54 PM   #17
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Default RE: Air Fuel Ratio Gauge

no, mustangs do not use a wideband. they use a narrow band. which I also feel is useless... especially on a boosted car.

Not to rag on you pro.. but in a REAL high boost application... like a DSM running 30psi.. if thet air fuel gauge even gets a chance to go into the lean... its already to late to save your motor!
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Old 12-21-2006, 10:08 PM   #18
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Default RE: Air Fuel Ratio Gauge

Do people ever change from narrow band to wideband like the kits they have to go from SD to MAF?
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Old 12-21-2006, 10:45 PM   #19
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Default RE: Air Fuel Ratio Gauge

Quote:
ORIGINAL: AdderMk2

no, mustangs do not use a wideband. they use a narrow band. which I also feel is useless... especially on a boosted car.

Not to rag on you pro.. but in a REAL high boost application... like a DSM running 30psi.. if thet air fuel gauge even gets a chance to go into the lean... its already to late to save your motor!
Dude it's ok. You don't see combo's like that here much and I wouldn't expect someone w/ such a combo to use a narrow band gauge. That gauge will serve a purpose for most of the applications running on this board. Trust me, when I have an extra 400 laying around I'll swap mine out. But for now I have a good tune that I can trust and a wideband isn't necessary right now.
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Old 12-21-2006, 10:51 PM   #20
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Default RE: Air Fuel Ratio Gauge

i've also been interested in looking at Air fuel ratio gauges for my new setup, i was thinkin a gauge for each bank. 2 gauges in the center vents, 1 for each wideband.
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Old 12-21-2006, 10:51 PM
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