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tforconcrete


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I have a 2008 Mack with a MP7 engine with a delete kit installed.  In the lower gears the truck seems to run fine but in the top gears it falls flat on its face.  There is an engine malfunction light on all the time (Lightning Bolt).  Checked  codes and no codes are listed.  Seems like a fuel issue but not sure.  Also is there a way to get flash codes from the truck itself without computer?  Any help is greatly appreciated.

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On 3/28/2019 at 1:48 PM, Tforconcrete said:

I have a 2008 Mack with a MP7 engine with a delete kit installed.  In the lower gears the truck seems to run fine but in the top gears it falls flat on its face.  There is an engine malfunction light on all the time (Lightning Bolt).  Checked  codes and no codes are listed.  Seems like a fuel issue but not sure.  Also is there a way to get flash codes from the truck itself without computer?  Any help is greatly appreciated.

My 08 granite gives the codes selecting diagnostics menu on dash

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