Hello sorry probably you guys answered this probable cause but i just recently bought a chevy 2500 96, and i have this wierd problem with and misfire sound like its only in one cylinder driver side but it doesnt misfire all the times it will sometime do it when it idle and the constantly misfire constantly when i reach last gear 2000 rpm but when i pass 2000/2150 rpm itll be all good, any suggestions
Thanks... Tim
Plus at this moment my wastegate isnt functioning cause of the vaccum pump could that cause the problem or not ?