Air Fuel Ratio Gauge

[chinaxb0y]

anyone here know what wire from the air fuel ratio goes to ? i had hooked it up to the O2 sensor (white wire) and it didn't work, can anyone help me out that has an air fuel gauge hooked up. if u do hook it up to the O2 sensor what color wire???? if not then where do i hook it up to. thanx

Jack

[DatSRBoi]

Blue wire.........

Now you owe me

[Ford_Fixorrepairdaily]

i hooked up mine to the blue wire, but for some reason it keeps showing rich.

[DatSRBoi]

Which O2 did you use? I used the one right under my car on the drivers side... Tommorow Ill get down there and recheck for you guys. But I had my blue line tapped into and I already resetted my battery too. When I drove around at first it kept not appearing at all. After I drove like 10 minutes it all the sudden jumped to rich, then stayed mostly on lean in the same spot..But like 15 minutes after initial start boom, worked all the way and still working now.

IMPORTANT----I remember that our sensors are different in some ways... ONLY SOME A/F gauge will work.. Others wont.. My current SPW gauges work but selling it on the for sale forum section since Im trying to get them new C2 Autometer gauges.

Sorry Ford_Fixorrepairdaily I totally forgot to tell you that only some A/F gauges will work...SOOO sorry bro..Just remember it..

[chinaxb0y]

which O2 sensor did you tapped urz into DatSRBoi the top or the bottom one??? if itz the bottom one. i have a problem then cuz i have the new jpp header for the 2AZ-FE and i have a simulator that throws off the O2 sensor so it'll give off a wrong reading. also i have the autometer air fuel gauge. do u know if that one will work ???

[DatSRBoi]

Either way its going to be thrown off... Cant ever go accurate unless you go wide band. My gauges jumps like crazy unless I drive at a steady pace then it tunes slowly to accuracy. Then the moment I brake it jumps again... There are like some gauges that can and will work and cant be thrown off by the simulator because its taking a direct reading from the sensor and nothing else.. Thats all that I really know.. Hope it works out for you.. Its cool but I now found out Im not getting any chicks with it..My cars getting all the chicks..

[chinaxb0y]

anyone else here has a air fuel ratio hooked up ??? i did it over and hooked it up to the blue wire and it still stay on rich. any help here ???

[DatSRBoi]

What gauge do you have? Autometer phantom?

[chinaxb0y]

i have the carbon fiber autometer. it doesn't say phantom but it looks exactly the same.

[indiglosolara]

i have the carbon fiber autometer. it doesn't say phantom but it looks exactly the same.

I have the Autometer Sport-Comp gauge. I hooked it up to my O2 Sensor Blue wire and blew the O2 Sensor out. Since then i have disconnected the wire from the O2 sensor but the gauge is still sitting in my car.

I replaced my O2 Sensor so i dont want to blow it again (its a expensive part). I talked to a shop and they said the proper way of hooking up a a/f gauge is to tap into the ECU or get a wideband o2 Sensor. Since our Toyota o2 sensors dont act as a wide band.

Autometer sells a wide band sensor and i was going to order one but im holding off until i have time to bring my car to a shop and have them do it and see what they recommend.

If you are looking for the wire on the ECU its the white wire for the 2Az-fe Engine (The engine i have), Dont quote me on it i just found out from someone else.

I probably would recommend you getting the wideband sensor or hook it up to the ecu directly but let the professionals do it..

[kiriko]

FYI A/F gauges don't work for S@#T

Save your money and buy a wideband

K

[Yanks0114]

What year is your car? On some 2001s and newer, toyota switched to a 5 volt o2 sensor. Since all of the gauges on the market are 1v, it always shows rich.

[Ford_Fixorrepairdaily]

What year is your car? On some 2001s and newer, toyota switched to a 5 volt o2 sensor. Since all of the gauges on the market are 1v, it always shows rich.

How can we correct this? Or can we?

[Yanks0114]

Can't - well unless someone can figure out a way to proportionally reduce the voltage from 0-5v to 0-1v. (i'm not sure that this would even work)

An o2 sensor is just a resistor in a sense. It takes a constant 12v in and sends out a variable signal that goes from 0-1v (or now 0-5v). The A/f interprets the voltage. The closer to 1 the more rich the a/f ratio. Therefore, when our 5v gauges are sending out anything higher than 1volt, which they do, the a/f gauge just interprets it as very very rich.

The real solution is to get a wide band o2 sensor

[chinaxb0y]

so the next best thing to do besides getting the wide band o2 is hook it up to the ECU ???