air fuel gauge install [Merged 10-8] A/F AF ratio worthless blinky

[Bigglesworth87]

I looked at my wiring and its a white wire that i am tapped into, is it the wrong one? Which wire is the o2 sensor that i am supposed to plug into? I will have to check it out again once it quits raining

 

[99gst_racer]

I looked at my wiring and its a white wire that i am tapped into, is it the wrong one? Which wire is the o2 sensor that i am supposed to plug into? I will have to check it out again once it quits raining

Did you tap into it at the O2 sensor, or at the ECU?

 

[Bigglesworth87]

Did you tap into it at the O2 sensor, or at the ECU?

It is tapped at the ECU just before it goes through the harness, approx 1-1/2" away from the plug

 

[TurboDreamzGST]

I'm trying to install an Autometer air/fuel ratio on my 97 eclipse gst. I have the power and ground wires both connected but my signal wire seems to be connected to the wrong place. I have no idea where it is run to so I'd rather just disconnect it and start new so I'm sure it's connected to the right place. When I turn the gauge on, the light just stay all the on the "lean" side and doesn't move at all. I know that I have to hook it up to the signal wire on the O2 sensor but I need to know what color wire that would be on the O2 sensor. If anyone can tell me the color of the wire on the O2 sensor that would be great and maybe even some pictures because that would be even better. Thanks for the help!

 

[shift_racer]

How good is your O2 sensor?

 

[majik2k5]

Leave it as it is and go for a 10 to 20 minute cruise and see what happens. Most of the time you have to give the gauge a little time for everything to warm up and then it will become responsive. Just head 10 minutes down the road and turn around. Chances are you'll probably start seeing results after 3 or 4 minutes on the road.

 

[Fabian972]

I don't know how to install it but i suggest you take it back and get a different gauge like oil temp or water temp something else that reads accurate i have the same one as you i wish someone would have told me the difference between wide band and narrow before i bought it was a waste of money in my opinion.

 

[majik2k5]

I don't know how to install it but i suggest you take it back and get a different gauge like oil temp or water temp something else that reads accurate i have the same one as you i wish someone would have told me the difference between wide band and narrow before i bought it was a waste of money in my opinion.

A typical answer on these boards.

To be honest, while the A/F ratio gauge is somewhat meaningless, it does have some purpose. Although it cannot pinpoint your exact A/F ratio like a wideband gauge, it still helps.

Months back my car had an issue with a cuppler around my GM MAFT setup which was in blow thru setup. The cuppler would continuously leak. We ended up replacing the cuppler with a longer and more durable one that didn't blow off either, and figured problem solved.

Well, the leak was before the GM MAFt, so the car still ran fine with cuppler leaking, just no boost. A week after we replaced the cuppler, the car started acting like it did again when I was starting to boost. I only got to about 1 pound and noticed something was wrong, so I let off. I figured it was the cuppler, but sure enough my A/F ration gauge showed me leaning way out under WOT. Not just the usual drop in one blinky light, but from green straight to red. Turned out to be a kinked fuel line.

Moral of my pointless rant; not everyone need be hanged for purchasing an A/F ratio gauge. While someone meaningless, it could be worse; He could have bought hot pink neon underglow.

 

[98gst14b]

a/f ratios gauges dont work very well on our cars unless you have a wideband. Well on 2gs as far as I know because I installed one on my car and it does the same thing I get one LED bar on the lean side maybe two if its cold.

 

[majik2k5]

I think he gets it; an A/F ratio gauge is not the best investment. But I think I clearly proved it's by far not one of the worst. Anything that gives you any idea on how your car runs cannot seriously be that bad of an investment.

Anyways, back to the topic at hand.

 

[Fabian972]

Moral of my pointless rant; not everyone need be hanged for purchasing an A/F ratio gauge. While someone meaningless, it could be worse; He could have bought hot pink neon underglow.[/QUOTE]


HAhahaHaha ..Hot pink Neon underglow ...nice one by no means was i trying to hang him for it just wanted him to know what he was buying incase he didn't know already I wish i would have found DSMtuners before i had my a/f gauge installed would have saved a nice chunk of change. That is a stage 1 mod which leaves me to believe he's new to the game so I was trying educate the guy.

 

[xtremeboost32]

i dont know about how well it works on a 2g car, but mine does the job. You tap the signal wire from the guage into the black wire coming off the o2 sensor next to the turbo, that is the signal wire to the ecm so make sure it is a clean wireing job a little corrision will cause very small amounts of voltage loss

 

[t-revor]

hey the more info the better right, I mean we cant allways be pulling out are plugs to see if we are running lean or rich...

 

[95FlamingTalon]

http://www.dsmtuners.com/forums/showthread.php?t=69282

This should give the answers you need.

 

[cumpersgsx]

I have a c2 series a/f and i wired mine up using that link ^...honestly i wish i knew what i was doing when i first got my gsx...rfl bov...altezzas...a/f light show...i was riced.

 

[Locutus78]

With my brothers 2g we tried a ratio guage and the lights on it were cool, but like other said return it and get or save for a wideband. The more accurate you are the better off you are.

 

[93_tsi_fwd]

i have this autometer air fuel ratio gauge. i installed it to the o2 wire but it is not reading corectly. i connected it to the white wire. thats what my brothers friend told me. is there a short way to put the wire under the dash board? what color wire do i connect it to.

 

[rebellpntball]

www.vfaq.com there is a how to on that gauge.. but in all honesty its not worth it.. it does not work correctly on our cars.

 

[93_tsi_fwd]

okay, thanks man. i got it.

 

[pooker]

A narrowband will do nothing for your car besides cause a beautiful light show.

 

[joe]

yeah they only work at WOT

 

[93_tsi_fwd]

ill be changing it anyway when i get a oil pressure gauge

 

[xceler8]

go with the wideband for sure. I ahd a narrowband for a while and it did nothing for me. I use my wideband aem uego for tuning my ms. It's more useful than the egt. Be sure you at least get an egt to accomodate it.

 

[oldman]

www.vfaq.com there is a how to on that gauge.. but in all honesty its not worth it.. it does not work correctly on our cars.

yeah they only work at WOT

It works correctly for what it was designed to do in any car either in close or open loop, the issue is the information is inaccurate and mostly useless beside verifying whether the O2 sensor is functioning.

 

[grnchevyz]

Oldman is right...if you want a sensor check its a good gauge to get imo

If you want to tune, Xcelr8 is bang on, get a Wideband.