truck will not run right
i have a 99 chevy silerado half ton with the 4.8L.
it fires and idles jsut fine dont miss a beat but one you get it up to about 2000rpm it starts spittin. i stole the tech 2 GM. computre from work and it dont throw any codes. other than a misfire when we get to that rpm range. me and these new motors dont get alone real well and im not real sure where to even start.