Weak powerstroke!!!
#12
Is it a 99 or a 99.5? In 99.5 Navistar went to a split shot injector for better emmisions. The difference between a single shot and split shot working is a big difference in timing. I think you're on the right track about the new computer. But you may have shifting issues. I'd try the old computer with the old injectors. Good luck!
#16
Hey guys!! My buddy called me today and said he was looking for a computer to put in his truck!! Sooo i hope I will be able to give yall a good update in a few days!! THANKS