CAT Cleaning and O2 sensor without removing - Toyota Yaris Forums

komichal · 11-08-2021, 02:16 AM

Hello there,
I have used OxiCat additive that declares the capability of cleaning up O2 sensors as well as the cat.
It did help to a friend of mine who could not pass the annual emission test here (not sure if you have something like that) but after he treated the car with one can of OxiCat the emissions went back to normal. So it may actually do something.

11-08-2021, 02:16 AM	#1
komichal View User's Garage Drives: Yaris 2007 1.3 2SZFE 64kW Join Date: May 2012 Location: CZ Posts: 337	Hello there, I have used OxiCat additive that declares the capability of cleaning up O2 sensors as well as the cat. It did help to a friend of mine who could not pass the annual emission test here (not sure if you have something like that) but after he treated the car with one can of OxiCat the emissions went back to normal. So it may actually do something.