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code p0420

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Old 06-22-2002, 12:27 AM
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Default code p0420

does this have anything to do with the egr or air pump removal... i have taken off my egr and air pump stuff and i think thats the only codes that i should be seeing. or maybe because i gutted my cats. anybody have any idea what this is...tia
Old 06-22-2002, 12:40 AM
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Default Re: code p0420

It's from the gutted cats, it's the rear O2(s) that are throwing the code. Should be a 430 eventually as well.

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Old 06-22-2002, 12:43 AM
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Default Re: code p0420

thanks dope, this isnt the first time youve helped me out. i appreciate it. joey




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