Quote:
Originally Posted by Irace86.2.0
It was metered and filtered. Then it went through the cylinder. It is essentially exhaust gases that get fed back into the intake manifold. The intake manifold has a hole. Disconnect the hose and unmetered air is getting sucked into the manifold. Connect the hole to exhaust gases, and you have the EGR system. Connect it to blow by gasses from the crankcase and then you have the PCV system. This air is compensated (predicted) by the computer, but not measured. Read the EGR article. Sounds a lot like the PCV system.
https://en.m.wikipedia.org/wiki/Exha..._recirculation |
True, it should be a small volume compared to what the engine ingests tho. The PCV valve isn't either open or closed. It is closed at low vacuum, open at mid vacuum and partially closed at high vacuum. On top of that the PCV hose is only 3/8" or 1/2" in diameter.