After finding out my 93Z likes to stay into open loop because the OE 02s are getting hot enough with the longtubes, I decided to convert them...

I'm using the 3 wire 02s, I was just wondering how much power is needed to operate the 02? And if there is a easy place to splice into a power wire that's only in use with "key on"?

I was just checking so I won't damage my new 02s. Thanks.

 

the three wires are, signal(goes to original o2 wire), heater ground(goes to ground), and heater power(goes to 12v key on only)

i dont know wire colors

 

I knew the wires, jsut didn't know how much voltage for the power wire. Thanks. Anyone know of a good power wire to tap into for Key on only?

 

I ran the wire to the relay box under the hood. I don't have the book right here and I can't remember which one...AC, or cruise control...something like that. If nobody chimes in with the exact location, PM me and I'll look at the car when I can get a chance. There may be other locations that would be closer, but the one I used was one mentioned on a site that had some info about doing this on 93's. I just tried to find the site and can't find it now. Sorry if this isn't really helpful...PM me if you don't get a power source it in the next day or so.

 

thanks man.