Which engine do you have? AJM, ATD, AUY.... or ARL, ASZ, AXR
The first 3 engines have intake designs like the North American ALH engines... these
are prone to having the intake manifold carbon-up from EGR gasses mixing with PCV
Sample images of plugged intake & EGR attached below.
When the intake becomes restricted, boost build quickly and the ECM cuts power to
protect the engine... the engine also has a harder time to breathe due to the restriction.
The movement of the vane rod still needs to be checked if the intake is free of carbon.
Rod movement in this video:
If the rod is stuck in the UP position, then boost will build slowly, as the vanes are spread
apart for slow spool.
Images (Click to enlarge)
Sunday, October 21st, 2012 AT 6:08 AM