PETDOC

Put everything back together and fixed my VSVs with a stent. Started the 4Runner...... and to make a long story short, it runs great above 2,000 rpms, but stalls out below 2,000 rpms. I'm guessing my VSVs are the problem, but would welcome any thoughts from others.

PETDOC

Hot damn I found it !!!!

Went out this morning and checked all the hoses; replaced many of the small vacuum hoses and the one to the PCV. Cut all the covering off wires that had become brittle from the engine heat--no broken wires. I then decided to remove the big air tube connecting the air flow meter and the throttle body. Luckily for me it had some grease on it and I decided to clean it off. When I was cleaning the hard rubber accordion elbow that connects to the throttle body I noticed on the ventral side at the bottom of one of the creases it was cracked. This was really only evident when it was flexed. It is now sealed with metallic duct tape and the 4Runner runs great at all rpms.
My stent repair of the VSV did work after all.