F150online Forums - 0420 Code Question

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82shark

12-08-2006 04:33 PM

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

akheloce

12-08-2006 04:45 PM

projectSHO89

12-08-2006 05:32 PM

Lazy cat on passenger side.

Steve

Quintin

12-08-2006 06:33 PM

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.

kievitk

01-28-2007 10:34 PM

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

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