Originally posted by DaKaptin
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EGR valve and pipewerk feeds soot-laden exhaust gas into the intake manifold, downstream of the throttle valve.
The oily vapours (Positive Crankcase Ventilation PCV) are piped from the tappet cover and are drawn into the air intake pipe upstream of the turbo. That's where a catch can would be fitted to intercept the oily vapours.
Typical configuration of egr is attached:
Engine Control System and Sensors.pdf
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