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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29534
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2004 malibu p0430 code catalyst system below threshold bank 2

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2004 malibu p0430 code catalyst system below threshold bank 2

GM Tech (Cam) :

Hello, I'm Cam. Please include all the details about your issue so I can accurately advise you. I cannot see your vehicle so please be detailed.

GM Tech (Cam) :

This is a very straight forward issue and code.

GM Tech (Cam) :

When that sets it simply means the catalytic converter is not working.

GM Tech (Cam) :

For that code to set the oxygen sensors have to pass a self test and not set codes so the basic diagnosis is to check for leaks in the exhaust, if there is none then replace the catalytic converter.

Customer:

thamk you

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