I just went through and replaced all injectors orings and checked all the wires.I still have a miss at 1100 rpms. It seams to go away at idle and at high rpm. The scanner does not pick up any problems with the contribution test.All injectors are working. I also cannot get my boost above 15 psi. map hose is good. Any ideas???

 

hmm try your icp sensor . unplug and drive.

 

how should the engine run with it unpluged???

 

It should run at a default setting so it should run normal. You'll have a cel though while its unpluged.

 

still missing it seams like. My truck has over 300000 miles on it. maby it is time to overhaul