So after the auction and getting home, I decide I should look at the Corollas after having pretty much ignoring them for a while. I realized the AE86 has had radiator flush in it all this time. I need to drain that, and take apart the idle valve anyway. It was doing the bouncy idle, and when I flexed the hoses going to the idle valve they were quite crunchy. I’m sure the valve is full of crud. 
The throttle body comes off without much drama. 
It is pretty crusty with gunk. Inside the intake manifold is pretty grimy too. Dang egr. Extra Gunky Recirculation is what that is! So I set about cleaning the throttle. I can’t do much with the intake. Debating to take it off and take it somewhere to have them hot tank it. That would be ideal.
And just as I suspected, the idle valve is crusted with rust. Taking the valve apart reveals that it seems the blockage is just at the hose end. The valve body itself look pretty clean. So just cleaning out the plugged end and changing out the hoses will hopefully solve the idle issue. Hopefully the rest of the cooling system is ok….
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