Did you notice, the PCV hoses, into and out of the cylindrical oil separator, are well insulated, to keep the gases hot? A lot of folk who are installing catch-cans are collecting a lot more condensed water than they are oil. I much rather have pure water vapour going into the inlet tract than dirty water, once it has been condensed and accumulated to a level where it might get sucked straight into the cylinders. Vapour is at least compressible....
Another view of the front of the engine - with inlet manifold and water pump removed. Unfortunately, it's not at all clear where the oil is returned to the sump by the PCV oil separator. A possibility is marked ?? Come to think of it - I may be quite wrong... Maybe there is no return to the sump, but the 'separator canister' is heated by engine coolant!! Too hard to see for sure without taking things to bits... maybe it's not even a separator - could be just a heat exchanger to warm up the gases coming from the PCV valve??
Thanks for those, interesting. The EGR location looks easier to get at, once the cowl is off I'd assume.
Very easy - The only thing you need to remove, for access, is the push-on grey plastic engine cover, which just pulls off!
The Yaris has quite different styling to the Prius C : Hybrid driving tips with the Toyota Yaris Hybrid | carwow
Sorry - I should have said that it is in fact the 1NZ-FXE engine! Prius C: Toyota Prius C - Wikipedia
The 'cylindrical oil-separator' I mentioned earlier is nothing of the sort! (The cylindrical heat exchanger on the right-and side of the engine) It's simply a cooler/warmer for the PCV gasses .
I was just thinking that. I would love to see what the New Car Features manual has to say about it. I'm still kind of fond of the ol' 1NZ. Not so much the totally-impractical-to-adjust-valves part. That part isn't perfect.
For some reason, I had always assumed the EGR cooler would aid warm-up by adding heat to the coolant until the engine came up to running temperature. Today I tried a new (to me) scanner app https://www.carscanner.info/ (Highly recommend) Which allowed me to see the EGR valve in operation - it only begins to work once car is at operating temp.!
Yeah, for whatever reason, people very often confuse the purpose of the EGR system and the Exhaust Heat Recirculation System. They have completely different purposes. Like the Gen 3 liftback, your c has both. The EHRS heat exchanger is well under the car on the exhaust pipe, after both catalytic converters. Just follow the coolant hoses, can't miss it.
Actually, no. The Yaris Hybrid, as sold in Europe doesn't have an EHRS system. It also has rear disc-brakes, and a quite different - and less Prius-like instrument panel. Otherwise, though, very much the same basic car. (differently styled rear-end too.)
Ok, that's fair; I saw "2014 Prius c" in your profile, and I did look up the EHRS system for it before posting, but I looked it up on the US parts site.
