Removed cat, second sensor not in use?

[elton]

Hi Guys,

I recently removed my cat. The O2 sensor is back in, but is it necessary to re-fit the second sensor? I mean the other sensor that screws into the exhaust as well, thats after the 02 sensor. Or Just unplug it and leave it at home?

Currently running it unplugged, no check light no nothing.

Cat i made only had one hole for the 02.

 

[Sheldon]

yes exactly. you dont need it. its the cat temp sensor.. you will run perfectly fine without it

 

[elton]

thank you sir.