what is this?

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08-06-2007, 06:35 PM

trichard310

Thread Starter

Join Date: Aug 2007

Posts: 2

what is this?

my check engine light came on so
I ran an obd2 code puller and came up with this; P0420, catalyst system efficiency below threshold(bank 1)
anyone got an ansewer for me??????
thanks

08-07-2007, 03:26 AM

acmech52

Super Moderator

Join Date: Mar 2006

Posts: 5,892

RE: what is this?

possible catalytic converter, if high milage, and engine starting to burn oil, it will cause the cat to go bad. ( what is your milage and are you adding oil between oil changes? )