So far, we cleaned the manifold (inlet and exhaust), we used an egr, intercooler and a turbo from a friend, whom I thankful I was able to borrow the parts I needed for testing…

We found an unexplainable factor affecting the turbo…

The egr valve, if blocked, will cause the inlet hose to be very hard or full of pressure… results in the loud wheezing of turbo (maybe due to over pressure.. tama po ba?)

If the egr valve will be left open, knocking sound and black smoke appears upon rev, plus loss of power results…

Can anyone figure this out for me? Thanks