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Re: 05 K2500HD Duramax
Posted to Technical Discussion Forum on 4/19/2012

Lee,

I have seen this code alone once and a replacement ficm would not have cured the problem. The problem was the common injector harness connectors on cylinder 2 and 7. Did you read the tsb's regarding that code. There is an updated tsb 05-06-04-047C that ... Login to read more.