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My southern Georgia peach agrees with this message. Pixel XL ?
What did you do besides EGR valve cleaning? Pixel XL ?
Emphasis added: So, 3rd gen head, manifolds, EGR on top of 4th gen block. 3rd gen head fixed with 4th gen parts. New head bolts. I think...
A good resource that explains in pictures what has changed in Gen 4 vs. Gen 3: 4th-Generation Toyota Prius Teardown (Part 1) - MarkLines...
Gen 3 (2010_cyl_head.jpg) versus Gen 4 (2016_cyl_head.jpg). Notice the mounting studs for the EGR assembly are in different spots.
From what I recall reading the Toyota papers the IM creates more tumble (notice the extra curvature) to increase flame speed and the extra 7% EGR...
That should be the least complex plan. I'd try bolting on 3rd Gen exhaust and intake manifolds and EGR system to new engine externally to test...
Last year when I did the EGR cleaning, I found some copper 20 awg wires at the hardware store. I believe it was doorbell wire. Most of the...
You'll poke your eye out, kid... Pixel XL ?
You may want to check your coolant hoses for leaks. If they're bulging or have residue on them replace them. I know kind of rare for a 2010 but...
Bonus points if you keep the GEN 4 improved EGR system. [emoji6] Pixel XL ?
There could be some dirt in the EGR and MAF sensor connectors? Each connection try contact cleaner on both ends (male & female) and allow to dry....
Possibly the EGR channels in the intake manifold are plugged in cylinders 1 and 3 diverting all the EGR into 2 & 4? Pixel XL using...
Evap purge solenoid disconnected? Pixel XL ?
Ok, that's right. It's T-SB-0027-16 mentioned in post #895 of this thread:...
YW. I agree - there must be a majority of Gen3 with some level of EGR and PCV problems. If the computer program in the ECM threw a code and...
Different engines will have different pressure and temperature curves. For example, compared to the engine mentioned by the research paper, Prius...
Here's a graph I found doing a Google search:...
If you were to find out and document compatibility of the Gen4 engine in the Gen3 you'd be a hero among PC'ers.
