Cm871 bad mpg

[Bengy88]

Ok off the rip invest in a laptop and an inline 6 or nexiq adapter... This is the only way you will ever successfully work on this engine yourself. I can refrence where to get insite in a pm. Most importantly i would change the imap sensor and exhaust gas pressure sensor and make sure the tube to it is clear. Connect the truck to a laptop and I or someone else here can pull your ecm file or teach you how to pull it and make sure its got a good delete in it.... As rawze says... Most arent good so always assume yours isnt. And get some short tires or change those rears lol. You will see and feel a huge difference