Post by
nametakennow »
https://forums.nicoclub.com/nametakennow-u713.html
Fri Jan 18, 2008 5:57 pm
So you're trying to determine your fuel mixture by tapping the first O2?
Or, are you trying to make the second O2 read clean when it's not?
If you're tapping the first sensor's signal, you simply need to connect your gauge to the non-power wire (red is power, black is ground, usually the signal is white).
If you're trying to make the second read clean, you have to put a resistor in that's at the same resistance as the clean signal would be. I have no clue what that resistance is. The easier ways to make it read clean are to put in a spark plug defouler OR move the sensor behind the cat, if you still have it.
Search if you need more instructions on how to do the defouler trick. I know I posted it at some point.