I have a 93 Z28 and I'm going to LT headers, I just want to know how to convert to a 3 wire heated o2 sensor.

 

Are you having problems right now?

 

why dod you want to have heated o2?

leo

 

I thought if are going to use long tube headers you needed heated o2 sensors and the single wire o2 sensors are not heated so you have to convert to the three wire o2 sensors.

 

do not4get,

Do you have LT right now. I do, and my car will not go into closed loop in idle no matter how long it does. It will go into closed loop only under load (in gear). I suspect that the PCM might force the 0'2 into closed loop under load, but they may not be sending the right info, at the that tempature, given that they do not go into closed loop in idle.

I have some heated 0'2 on the side right now. The thing is, I do not know if these 0'2 really are what they are. The have 3 wires, but I do not know if they
1.) hot, power
2.) black for ground
3.) signal wire

or

1.) high signal
2.) low signal
3.) ground / power (maybe gets ground from header).

I have no way of knowing......does anyone have a part number to a known 3-wire sensor with
1.) signal wire
2.) ground
3.) 12v power wire

Good Luck

 

How about taking the O2 sensor bungs a moving them so the sensors will get hot.

 

My car runs fine with normal o2s


Althought... I do have cats right after the collectors... maybe they help keeping it hot enough.

I really don't know. but good luck!

TTT for ya

leo