I have an autometer narrowband A/F gauge i'm tryign to hook up. The instructions are generic, and they are closed on weekends Can someone tell me which wire i tap in my upstream o2 sensor?? I have four wires from each sensor. Looks like two whites, a black and a grey. It's a 2003 6mt. Thanks!!!

 

dont even waste your time buy a wideband or you could always do the cheap wide band and get a one wire 02 wire it directly to that.

 

Well it's a lil late now, and the car is in the air with everything hooked up but the signal wire.


Any one else?

 

well i cant remember off the top of my head but it should be pretty easy to figure out if you have a multi meter. Just check the wires you should have a 12v wire and a 5 v wire the 12v wire is the heater so that takes care of one if you want you could start it and check each wire and see which one has a voltage change between 1 and 5 it will change if you rev it if its idle it will hardly change. Then just hook it into that wire.

 

Ok thanks!! Do it matter which sensor i use? Upstream/downstream?

 

OOOOOooo yeah always always always up stream

 

Cool thanks!

 

OK for future referance. On the drivers side upstream o2 sensor, it's the teal wire on the wiring harness side of the plug. (Under the intake pipe) And yes...i will be upgrading to a wideband asap. I haven't even driven it yet, and the bouncing lights already drive me nuts!!!!