Engine light

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Sep 12, 2011 | 01:03 PM

HBJBIRD

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Joined: Sep 2011

Posts: 14

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From: ORANGE, CA.

Engine light

My engeine light is on and I'm getting a "PO420" code. ??

"P0420 Catalyst System Efficiency Below Threshold (Bank 1)".

Last edited by HBJBIRD; Sep 12, 2011 at 01:39 PM.

Sep 12, 2011 | 01:39 PM

glc

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Joined: Dec 2006

Posts: 43,530

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From: Joplin MO

Bank 1 catalyst efficiency below threshold - one or both of your passenger side cats are bad or you have an exhaust leak.

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