Air/Fuel Gauge

[JoeMadoo]

Will an air/fuel gauge such as autometer work with the stock o2 sensor we have?

[Rfitz25]

Saw some similar discussions on rev3 forums.

I'm trying to figure out the right part number for Bosh 19# injectors for an I motor (low impedance) maybe I'll start a thread.

but this relates to possibly running rich and whether the O2 sensor and ECU will compensate correctly.

[gotKRAUT]

Fitz; air fuel gauge has nothing to do with changing the AF ratio it just monitors

Joe: Yes you can but im not sure which one you need to splice into..I am running a summit racing AF gauge on my scirocco and it was cake because its single wire, but im not sure on these...im useless sorry hehe

but its whichever one is the signal wire

one is heater, one is signal and there are one or 2 grounds..

Edit: oh and keep in mind if you extend or shorten the wires from the AF gauge all the o2 readings will be off unless you use a much larger diameter wire and actually solder the connections on the extended piece so that there is minimal change in resistance, but the original wire that comes with the AF gauge should not be cut

[DIRTE30]

Originally Posted by gotKRAUT

Fitz; air fuel gauge has nothing to do with changing the AF ratio it just monitors

Joe: Yes you can but im not sure which one you need to splice into..I am running a summit racing AF gauge on my scirocco and it was cake because its single wire, but im not sure on these...im useless sorry hehe

but its whichever one is the signal wire

one is heater, one is signal and there are one or 2 grounds..

Edit: oh and keep in mind if you extend or shorten the wires from the AF gauge all the o2 readings will be off unless you use a much larger diameter wire and actually solder the connections on the extended piece so that there is minimal change in resistance, but the original wire that comes with the AF gauge should not be cut

Good advise... Definitely need to solder into the wire on the O2 sensor or you will have some issues. You should be able to find the signal wire fairly easy by looking at a wiring diagram. Stoich's are ok for N/A motors but if you're looking for accurate enough info for boost monitoring they suck! You need a wide band or an EGT guage if you want some accurate info. Cool to watch the little lights change color though!

[gotKRAUT]

x2

[JoeMadoo]

So this is a yes then?