Chevrolet Impala Computer Diagnostic Connector ALDL

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2004 Chevy Impala OBD

2004 CHEVROLET IMPALA
My 04 Impala Ls Keeps Showing 2 Codes When A Code Reader Is Connected, 1 Being P0420 And P0420(pending)i Looked Up The Definition And It...
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Asked by TUPAC2

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