Installed the 1zz throttle body -

[AlexNet0]

I installed the 1zz throttle body today, and after everything was bolted back up, the engine oscillated terribly, I was expecting the 2-3k revs, but then after a few minutes it started to rev weird, eventually dropping off and starting to rough idle between 500 and 2k rpm, I attempted to purge the air from the lines, and got a few bubbles out of the coolant, and no more were coming out, but it did the same thing. No CEL was present during this.

So to prevent damage, I took it off and re-installed the stock throttle body, as I was doing this, I noticed that there was no coolant passing through the 1zz throttle body, the lines were empty. however when I bolted back up the stock TB and everything connected again, it oscillates between 2-3k rpm still, although I again purged the air from the coolant, getting more bubbles than I did with the 1zz TB.

What could this be from? I was shocked when I put the stock throttle body back on and it still oscillated like that.