I need to do a dummy o2 sensor for my 99. It's throwing the code for the cat so I just want to bypass it or take a smaller sample reading.... I can't find one online, any suggestions?

 

i tried making a voltage divider before with no success. i converted to obd1 and removed all the 02 sensors.

 

Yeah icdont want to have to do all that, I'm just trying to avoid buying anew cat

 

convert to obd1 if there are no emissions in your area. all you need is a odb1 ecu thats chipped with a b20 basemap and a odb2->odb1 conversion harness.

 

You have a cat code or an O2 code? If its a cat code google "spark plug defouler"

 

What are the benefits, and how much will that cost?

 

Yep, defouler. I have one on mine even though I dont need it. Its basically a spacer for your secondary o2.

 

The guy I bought it from said it was an o2 sensor, and then my buddy who is a Honda tech checked it and it said cat, but he was the one who told me to find a dummy sensor..

And definitely no emissions here in metro Detroit. Anything goes haha

 

Spark plug non fouler trick, its not an electrical dummy its a spacer for the o2 sensor from the cat so it only reads an X amount just enough to fool the ECU. Im on my phome right now so i cant find it as quick but its on an RSX forum if not an Evo forum go google the DIY, it worked wonders for my Civic, went through 3 o2 sensors before i figured out the trick and gutted my cat, no CEL since.
Edit: poisnus.com/files/Spark%20Plug%20Non%20Fouler%20Mil%20Elims/mil%20elims%20spark%20plug%20fowlers.htm

 

Can vouche for this, it works!