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Old 03-26-2025, 10:13 AM   #1
chris989
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Join Date: Dec 2011
Location: Boise, Idaho
Posts: 724
how to read codes

Hello all,

Wife's burb,, 2002 2500, 6.0 4l80

It died yesterday,, 99% sure it is the fuel pump but before i pull the tank i want to confirm low pressure... Is there a way to cycle the key or some other combination to get the codes on the dash or a flashing sequence?


I have been searching the net for 30 minutes now and get every forum/video except chevy for my gen.. I have an 89 v2500,, a little different

Thanks in advance

Last edited by chris989; 03-26-2025 at 10:21 AM.
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