P0400 - toyota camry 2002

Question

Hello,

I have a toyota camry 2002 the check engine light is on the the code P0400 (Catalyst Systems Failure). What does this means?

Answer 1

Please double check the code the P0400 is applicable for your 2002 Toyota Camry. The code for the catalytic converter are the P0420 and P0430 code. If you have one of this codes, it means that you have to replaced the catalytic converters. You could try using high octane gas for a few weeks to see if that fixes the problem, but more than likely the problem are the catalytic converters.