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Old 01-18-2011, 11:06 AM   #8
68C15
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Join Date: Jan 2004
Location: next to my reloading bench
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Re: 2003 S-10 "check engine" light

Quote:
Originally Posted by gchemist View Post
If the cat is toast, you'll hear rattling.
if it is damaged to the point of not doing it's job you will get a P0420 or P0430 (converter efficiency low, bank 1 or 2 respectively)

if removed you will have high cylinder temps and pressure burning pistons along with codes for insufficient EGR flow and poor driveability
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