What would make check engine light come back on a week after fuel pump replaced? on 2005 Chevrolet Uplander

Mechanic ran diagnostic and concluded check engine light was caused by faulty fuel pump and sensor, replaced and after a week the light has come back on.

by in Vail, AZ on January 21, 2012
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1 answer 1 comment
ANSWER by , January 21, 2012
there is no code for the fuel pump. there is one for circuit issue but not the pump. a code never identifies a bad part, just a failed system. get it re checked and correctly diaged. Roy
COMMENT by , January 22, 2012