---
title: "OBD2 Code: P0420 Toyota Prius"
slug: p0420
collection: obd2-codes
code: P0420
url: https://fixmycar.pk/obd2-code-list/p0420/
---
As the P0420 code states, whenever the catalytic choked to a stage that the vehicle performance is greatly compromised this code will set in. The catalytic is cleaned and re-installed. Sometimes this code of P0420 also sets in if the oxygen sensors on the cat-con have stopped functioning. We also provide permanent delete function of this OBD2 code P0420.