i have an autometer air/fuel ratio gaugem i'm trying to figure out how to install it.

the wires that are coming from the gauge are the following.


black,red,pink, and blue.

can anyone tell me where thes wires go to?

 

is it wideband?

 

i don't think it is.

 

In that case, the gauge is useless. You will just see pretty lights flash from left to right. Don't waste your time with it.

 

I am going to install my wideband Autometer Cobalt today, I have gone long enough without knowing what my AFR's are...........

 

Return the A/F gauge and get one that is actually useful. You factory 02 sensor is only accurate from 14.2-15.2:1

 

even though in the downpipe there is an extra o2 sensor that is not hooked up to anything. would that be like a wideband ?

 

No, it's a totally different type of oxygen sensor. You want a 5 wire, 0-5v output 02 sensor (aka:wideband). You factory sensors are narrow band 0-1v sensors.

 

Ok, Red- 12V+, ignition-switched.
Black ground
pink gauge lights (dimming)
blue- signal (hooked up to plug C on ECU, pin #16).

Pink and blue might be reversed, not sure. Wanna check it? Here:

1. disconnect both terminals on the battery (or just get a 12V source, like a charger, trickle-charger, etc.)
2. Hook up Red to 12+, Black to 12-, and then touch the pink wire to 12+. See if the display dims (or gets brighter).
3. Try Blue, watch for dimming (or brightening) reaction. If so, that's your instrument lights dimming wire.

 

I agree with the rest of the guys. Especially if you are going FI, your A/F meter needs to be a wideband. There are several good ones out there, but it requies running a totally new sensor to your Cat/test pipe or header/downpipe. They are very useful in keeping your ratios in safe ranges. The narrow bands are not going to be used in tuning, it will just look cool.