I have a P0420...

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Aug 27, 2005 | 03:35 PM

Loony

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Joined: Feb 2004

Posts: 584

From: Wildwood, MO

I have a P0420...

Basically it's saying my driver's side cat is PMSing...can I get an O2 simm and pass CA smog that way? Or do I have to replace it?!?! Thanks guys...

Aug 27, 2005 | 03:44 PM

IROC-T

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Joined: Jun 2003

Posts: 866

From: So.Cal on the Best coast

Re: I have a P0420...

The O2 simulator will tell the ECM that the sensor is funtioning,it won't change the emissions. Time to get a new cat.

Aug 27, 2005 | 10:35 PM

Loony

Thread Starter

Registered User

Joined: Feb 2004

Posts: 584

From: Wildwood, MO

Re: I have a P0420...

That's the thing though...it doesn't seem bad. It all smells fine, doesnt smoke. Pretty soon I'm going to be getting LT's and ORY so I don't really wanna buy a cat for a couple hundred miles...

Aug 27, 2005 | 10:48 PM

IROC-T

Registered User

Joined: Jun 2003

Posts: 866

From: So.Cal on the Best coast

Re: I have a P0420...

Swap O2's over and see if the code follows. If it does then it the O2 sensor and not the cat.

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