Trumbull_welding Posted February 20, 2023 Share Posted February 20, 2023 Good afternoon everyone, I’ve got a 2006 Mack cv713 smoking white with a loss of power and rough running truck throws a code for injector three so we swapped the eup for cylinder three and found no change codes the truck currently has I will attach to this and post below. Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted February 20, 2023 Share Posted February 20, 2023 (edited) I always check the wires to the EUP's before I dive into the customers wallet.. They crack and chaffe, then short to ground on the engine block. Also check the EECU plugs for fluids and/or green stuff, inside the terminals.. I am not familiar with that computer diag system.. Do you know how to check active codes using the cruise control buttons? jojo Edited February 20, 2023 by Joey Mack more content needed 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted February 22, 2023 Share Posted February 22, 2023 Hey there Trumbull-welding... I'm checking in with you.. Any new info to share? jojo Quote Link to comment Share on other sites More sharing options...
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