EGR Valve replacement Prius v (lowercase v for the Prius v wagon, not an uppercase)

Before taking intake manifold apart, I tried Sea Foam spray through throttle body with engine running and added from another Sea Foam can to gas tank and oil. Never used it before. The codes p403 and p219 still here, p303 is gone and but the car runs much better , could drive with EGR plug in, however shaking . Then dissembled and cleaned intake manifold . Only tiny layer of dirts was on the wall. Nothing changed, same codes and shaking when EGR plugged in. Continue to drive with disconnected EGR. In a week or two will try to dissemble and cleaned EGR cooler adapter

 

Merged...

Yeh! Actually I was wrong about code P219 definition, thinking it's air/fuel ration, it's mean excessive engine speed, probably happened while cleaning intake manifold with Sea Foam

 

Good idea, l'll do it right away


Merged

Somehow I missed this post, thank you for invitation, would be great to have a drink together, but so far no plans to be near you. From my part if you ever near Halifax , Canada - welcome!

 

My try to remove and clean EGR Valve cooler is failed because this damned cooler is attached to the engine from a firewall side as well. Need a hoist to access it from the bottom. To much work in a home garage. Cleaned the cooler, EGR Valve, pipe without any improvement in driving. Car is shaking a bit while maintaining the same speed. So I continue to drive disconnecting EGR electric plug without any problem.
Thinking that problem is not in clogged or dirty intake/EGR/cooler but in clogged exhaust in whole with excess fumes going to EGR system

 

Regarding the work I had done on a car - not a lot, up to 300,000 km had no problem when check engine light came on with catalytic converter efficiency below trash hold code. Dealer said that catalytic converter is clogged and estimated to replace it ( whole piece from exhaust manifold till muffler ) was $3,300 plus tax - ridiculose high while car was driving absolutely fine. Few months later car started shaking (what's happening right now) and EGR code came in. So I had replaced spark plugs and coolants first ( air filter - every 80,000 km ), then just catalytic converter for $700 - covertor efficiency code disappeared but not shaking, and you know the rest when I asked advise about EGR Valve on this forum.

The fact that car works fine with unplugged EGR valve connector ( valve is in close position) and no exhaust in intake manifold, makes me believe that problem is another then dirty recirculating exaust system

 

1. There is no oil consumption at all
2. Catalytic converter was clogged and was a lot of black build up in a cooler side connecting to EGR . So I cleaned it as I could twice using air pressure, throttle body cleaner, vacuum cleaner . I agree that it's probably clogged and tried to remove it in order to clean. But for know I am giving up and maybe will try to fix it later, in a summer