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2012 MP8 losing power in high gear


Longhauler

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Deleted truck

Truck runs fine until you reach higher gears. Misses and loses power almost like its not getting fuel. If you manually get the rpms over 1300 truck runs fine. 

Fuel system and lines checked, turbo checked, number 1 injector replaced, new ecm. Nothing has worked. Any ideas?

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deleted???  that is where the problem started.... the EECU is smarter than that...  Leave the EGR system alone and keep it in good repair...  -or- sell it and get a real truck....  Sorry but the Gov. made sure that you cant really beat the system...  at some point you will PAY...  When I worked at the MackVo dealership, a few years ago,  we were not allowed to touch a deleted truck....  So you are left to take it to a private shop...   Then the 'Hack's' come out of the woodwork with "The solution".. you pay them 3-5K ... you go away and do youre thing, then you have an issue... and guess what?  youre screwed...  sorry guy's .. Jojo

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