2001 Chevy Monte Carlo SS Wont Pass Emissions Test. Can anyone help with resetting

Susan

New member
check engine light.? I had the car checked out by a mechanic. He replaced my EGR valve and reset the code. I drove the car home and my check engine light came back on. I took the car back to him but he couldn't find anything wrong with the car but the diagnostic still displays the same code. The mechanic says I need to have the computer reflashed. Any help is appreciated.
 
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