I have a 09 chevy malibu ls with code P0420 bank 1 is the catalyst converter the small or big one ?

Question

is the catalyst convertor small or big

Answer 1

Hi there

This code is for the converter that is bolted to the exhaust manifold.

P0420 CHEVROLET - Catalyst System Low Efficiency Bank 1

Read more: https://www.autocodes.com/p0420_chevrolet.html