hey guys got a weird situation goin on once again...my trucks a 01 silvy 4.8 with a little bit done to it...i swear my trucks goin retarded or somethin...i have no idea whats going on but latley its either been running like a animal that got outta its cage or like a total dog...no CEL's or anything have occured...then today while leavin my buddys place i randomly get a CEL...with my luck all the autismzone's and other parts places are closed...my broski at work has a scanner so im gonna see what its doin tomarrow...a while back when i had my crank relearn procedure done i had a code for egr stuck open (never had that before), a security code, and a sending unit code since my fuel guage goes apeshit...i was just thinking would a bad egr make my truck run like this? also when i had emissions done it passed but it did fail one thing, that evap cannister...any ideas guys???

tj