I tryed to get my truck live tunes today and the tune worked but it started doing what it usally dose when I first start it. Its bogging down really bad when I punch or even give it alittle gas. I have to let off and then get on it slow so it will actully go. Its a 99 blazer.

But we cant findout what it is we thought it was my exhaust but we unbolted it and ran it with out it and still bogs down. But could it be the fuel filter or my injectors?