Having problems with your 2002 Toyota Camry ?

P0420 code Engine light comes on intermittently and the car has a P0420 code? The engine lights resets itself after a couple of days.

Posted / edited by AnonymousUser on : 01-03-2021

Answers :

This means that the secondary O2 sensor detects that the catalytic converter \015\012isn't working as efficiently as it should. \015\012
This engine code can be triggered by any one of the following:

1.) \015\012The catalyst in the catalytic converter is cracked, clogged, or otherwise \015\012damaged.
2.) The secondary O2 sensor is malfunctioning.
3.) There is an \015\012exhaust leak.
4.) The computer unit is faulty.
Repair Help & Product Troubleshooting for 2002 Toyota Camry

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