Electronic filter to deleteri p0420

[An1992]

I have a European Toyota yaris 2 from 2007, with a 1.0 1krfe engine with p0420 error.. I purchased an extension to remove the oxygen probe downstream of the catalytic converter, but the error appears again... Currently the probe values ​​are between 0.1 and 0.85volts... I think that sometimes it exceeds this and the error appears.. I would like to modify the electrical wiring of the probe with the electrical filter, so as to always have volts values ​​in the suitable range but I found various information on the net. Do you have the wiring diagram compatible with Toyota Yaris? Thank you

[An1992]

I apologize if I post another site, thanking you but I found this one which can be useful, however they are two different circuits

[sh0rtlife]

get a longer tube version with a "mini cat" in the tube..should solve the issue...if it doesn youve got engine issues

[An1992]

get a longer tube version with a "mini cat" in the tube..should solve the issue...if it doesn youve got engine issues

What kind of engine problem if any? Piece with 90* or direct filter?

[An1992]

"I use one straight + one 90 with mini cat, OBD error present but now no warning light on the dashboard, probably doesn't solve it but delays the notification a lot. I also tried with an electronic filter on the lambda sensor wiring but nothing."