what i have is a 97 f350 psd
with a ZF5
310K on it
it has a banks IC/pipes, S&B cold air, new remaned stock injector 3K on them, banks .82 exh housing, TS 6pos tuner,and new map
i have had it 3 months now and have replaced injector O rings, fuel filter oil filter, rebuilt the turbo and replaces the stock exh housing with the .82.
my problem is at 3200 and 3400rpm i have a miss,and pure white smoke. when it misses my injestion psi
goes fron 3200psi smooth to unstedy 2700-2800psi. it will only do it with a when driving. and only in 3 and 4th gear. im guessing 1 and 2nd go by that rpm range to fast. it also at this rpm range i am making max boost of 24psi. when it misses i can see my boost spike down to about 15psi. witch leads me to believe its caused by blowby on the rings.
but with it running and the oil filler cap off there is vary little smoke coming from it.. ihave not mesured my blowby yet.
its not throwing any codes its getting about 12-13mpg highest egt
iv hade was 1000*
im looking at cleaning/rebuilding my IPR
this weekend just to make sure its not that causing my problems.
i have searched for some time now on this site and cant find any one with the same problem. if you have a post i will be more then gladly to read through it if it will fix my truck.