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Mp8Mack


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Does any of the shops have the PTT premium tech tool program? If not your just wasting your time and money unless you luck out and find a obvious problem. Million possibilities, from incorrect tire size in the ECM , wrong boost pressure sensor. Wrong turbo mouning gasket. Stuck open EGR valve.  I’ve seen the “spoon” on the EGR cross ovee pipe broken off and down in the intake manifold. Fuel pressure should be around 55 psi at idle and 65 at 1150 rpm. You really need to check it going down the road and should be in the high 60’s to 80psi. 

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