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Old 12-17-2010, 08:44 AM
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Operator1 Operator1 is offline
Join Date: Nov 2009
Location: NC
Posts: 476


The OP's method is basically like unplugging the FPR, which is said to force it wide open. I know it works on cummins, but have not tried it on the duramax. I ASSume it would be the same.