Are there way to convert A/F signals to run A/F gauge?

[DatSRBoi]

I was told that our sensors runs and perform differently from other A/F sensors..Something about current..Well I can run my A/F gauge now since it cant pick up the signals that our solara gives..So is there anyway I can convert the signals or anything I can do to get the A/F gauge to read the signal right?

Didnt know if this is aftermarket forum or just normal so yeah.

[Yanks0114]

I was told that our sensors runs and perform differently from other A/F sensors..Something about current..Well I can run my A/F gauge now since it cant pick up the signals that our solara gives..So is there anyway I can convert the signals or anything I can do to get the A/F gauge to read the signal right?

Didnt know if this is aftermarket forum or just normal so yeah.

Sounds like you are having the same problem I am. Some of the solaras have a 5volt o2 sensor, and some have a standard 1v o2 sensor. That explains why some ppl have had success with the a/f gauge and others didn't, myself included

To test, take a mutlimeter and apply it to the blue or white wire and one of the blacks. If it reads anything over 1v you have a 5v o2 sensor. Iwas getting readins of +-3.3V

Currently there are no ways besides a wideband o2 sensor to get an af gauge to work.

Good luck and let us know what you find

[DatSRBoi]

Yeah..I didnt do the test thing but I tapped the blue line...Im getting a signal only at a steady flow..I would do a wideband but then Id waste money for no reason... Solaras are complicating..

[indiglosolara]

Hey Dat,

I am currently having the same problem. I was getting wrong readings when i installed my A/f gauge. I still have my gauge installed but i disconnected it from the o2 since i blew my o2 sensor out from the gauge.

I know that autometer makes a aftermarket o2 sensor made for a/f gauges. The model is some like 2244 autometer a/f sender. I am going to look into it and may purchase the sender unit and do the install.

If you find any other solutions to this let me know also..

[DatSRBoi]

Wow you blew a Sensor just because of the gauge? I think I should check mine and make sure. I sorta checked into that Sender/Reciever you talked about. It seems that it might will do the trick..But Im going to run by my friends shop tommorow and get some full details about this product..Good find. Other then that I guess its true only a wide band sensor will give accurate reading..Other then that its impossible to get accurate reading with oem etc sensors. Something about its not big enough to pick up more exhaust flow..

Mine in way works at an 80% acuracy IMO... Sort of learn something about when you gas its suppose to go from lean to rich then mid rich and starch..At idle its best in lean to keep the engine running high. And when you drive and release the gas all the sudden it either stalls in rich then slowly hits back to lean to keep engine running. It never stays in the same spot or your engine wouldnt run as smooth..Its nice though. Gets the chicks haha..sorta.

[Midias]

If the problem is that is is putting a signal out about 5 volts pp instaead of 1 v shouldn't you be able to use something like a transstor amp to diminish the sigal into a useable range.

[indiglosolara]

If the problem is that is is putting a signal out about 5 volts pp instaead of 1 v shouldn't you be able to use something like a transstor amp to diminish the sigal into a useable range.

I guess you can but that would be too mickey mouse (for me at least).. I am actually looking into getting the sender unit that autometer sells for the a/f and try that out. From what i read on other forums it should work. I'll see what happens. I am going to head out to my friends shop and see what they say... and what they recommend.

[Yanks0114]

If the problem is that is is putting a signal out about 5 volts pp instaead of 1 v shouldn't you be able to use something like a transstor amp to diminish the sigal into a useable range.

I'm pretty sure that won't work because it would reduce the voltage by 4volts (just an example) meaning that the relevant range would be 4-5volts, you would lose anything below 4.

I'm not sure if that made sense, but you don't need something that reduces voltage completely, you need something that will proportionally lower it.

A 5v o2 sensor has a range of 0-5v.
A 1v o2 sensor has a range of 0-1v.

[indiglosolara]

here are some good article that i found about a/f gauges and how reading should be and also what voltage it needs to be.

http://www.gadgetseller.com/gauges/techinfo.htm

http://www.scuderiaciriani.com/rx7/AF_meter.html

I talk to a rep about the autometer a/f sender unit us the best way to do it. All i have to do it connect it and voila... Its a little more difficult thn that but thats the basic of it..

[DatSRBoi]

Wow good stuff

[Turbosolara]

I am sorry DatSRboi i told you wrong info. I think i tried that too and it didnt work out. but i "think" i tape the O2 stimulator on the blue wire on my 2nd bank of a/f sensor.

I think all you need just to have a muffler shop or a performance shop to install a extra O2 sensor bung on the exhaust, somewhere near the header. After that you can install any after market O2 sensor kit with A/F reading. For my car, i just have a random O2 sensor tape into the O2 sensor bung on my and hook it up with my apexi turbo timer. But the O2 sensor die shortly after, i am not sure why. I guess is it cannot handle the wide range movement of my A/F ratio due to the fact that my car is boosting.

a heated O2 sensor would works better, but it is expensive and harder to install. I was told Greddy A/F ratio kit has the most accurate A/F reading that is close to the wideband.