Hi guys im running into a bit of a problem with my truck right now and people are saying that its because the predator chip that i got advances the timing!! I have no idea what timing it advances , lifters, fuel, injectors? could someone please explain to me in detail what part of the motor the ...

Hi guys I'v recently been having a problem with my truck! I own a 2006 cummins 5.9 with the predator U7131 with the settings on fuel economy! i'v had this chip in for over a year and now im getting what sounds to me and a few other people to be a timing knock/rattle! when i take the chip out the ...