misfiring on 1 and 8 I put in new intake gasket,wires,plugs ,egr,iat,coil packs and fuel injector . im getting good spark and fuel. the truck shakes when running at any speed I get lucky if i can get truck up to 70 on interstate . I have good compression I also checked for vacuum leaks nothing.. if you guys have any ideas pleeeaseee help

 

What are the exact codes, please?

 

code 301,308,and 1151

 

You say that you have good fuel, so what did you do to check the fuel? Code P1151 is a sign of poor fuel.