0420 Code Question

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Dec 8, 2006 | 04:33 PM

82shark

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Joined: Oct 2006

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From: Raleigh, NC

0420 Code Question

My 97' F150 threw a 0420 code. Is it the catalytic or possibly the O2 sensor? The mileage has dropped recently too. Any thoughts or input?
Ed

Dec 8, 2006 | 04:45 PM

akheloce

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From: Off the Road, Alaska

http://www.obd-codes.com/trouble_cod...old-bank-1.php

Dec 8, 2006 | 05:32 PM

projectSHO89

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From: St. Louis (Out in the woods)

Lazy cat on passenger side.

Steve

Dec 8, 2006 | 06:33 PM

Quintin

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Joined: May 2004

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From: Georgia on my mind...

Quote:

Originally Posted by 82shark

My 97' F150 threw a 0420 code. Is it the catalytic or possibly the O2 sensor? The mileage has dropped recently too. Any thoughts or input?
Ed

The bank 1 converter is chemically dead.

Jan 28, 2007 | 10:34 PM

kievitk

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Joined: Jan 2005

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From: Camas Valley,Oregon

I just got that code and also noticed my milage went down the ****ter

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