Check out my AFR gauge mount and a question about afm wiring
 

Tonights project was to pull the exhaust to get the bungs welded in and to try and find a place to mount the gauge. I choose my clock since I have an external kill switch on it and it's my track car so it is never used. Check out the results, I'm pretty happy with the way it turned out.


As for my question. What should I use to power and ground my AFR Gauge which ends up powering the o2 sensor itself? I have the wiring for the clock just sitting there, but I think that it has constant power and I need switched power.

http://i7.photobucket.com/albums/y299/rollbmw/aem.jpg

I tapped into my radio power wire.

I don't have a radio in mine, but the wiring is there. Does anyone know what color the radio power wire is?

What engine do you have? On my 3.2 I used the power from the DME relay for the original oxy sensor and fuel pump. The ground I got from the original oxy sensor (the inlet manifold)
Power from the fuel pump should work. For permanent power I used the clock power.
Cheers
Ray

http://forums.pelicanparts.com/uploa...1651020594.jpg

11 year old post and OP hasn’t posted since 2018….

Hi Dennis,
Yep, I need to check the dates...

Thanks!!