Which wire for a/f ratio guage?

[B16+4VTEC]

Which wire do i hook up my a/f ratio guage to? It is going to be in a 99 acura integra.

[ofay]

Which wire do i hook up my a/f ratio guage to? It is going to be in a 99 acura integra.
i think its the second 02 sensor

[B16+4VTEC]

which wire there are several?

[Silverbeast]

Use a factory service manual. BTW, the gauge is useless. Only worth something if you like cool lights.

[Widebandphillip]

ditto

[SecretAgent]

Use a factory service manual. BTW, the gauge is useless. Only worth something if you like cool lights.

not only is it useless, it's extremely distracting at night...stupid flashy led's.

[B16+4VTEC]

it is not an egt guage, i know that. I still want to know which wire since i don't have the manual.

[cypher]

4 wire o2 then it goes to the white wire

[B16+4VTEC]

Thank you that is what i was looking for.

[fastcivicboy]

it is not an egt guage, i know that. I still want to know which wire since i don't have the manual.

lol

[Bug_Power]

i think its the second 02 sensor


You want the first one.... the second one gives you the Post Cat 02 which means some of the fuel mixture has been scrubbed. Also you should typically have a white, black and maybe 2 grey wires. Typically it's a heater, and then the signal. You have 12v to each then the resistance back on I think the white wire is the signal. Check your manual. It should discuss how to check to see if the 02 sensor is bad. That should then tell you what the signal wire is.