Idle suddenly is 1500 rpm, check engine code is P0507. Throttle body butterfly looks good. Seems like a no brainer IACV needs cleaning or replacing.
However, removing the dang thing proved a mightier task than this weekend-wannabe mechanic could perform in one evening.
First off, what bolts/screws do you undo? I found this diagram:
On that diagram, the IACV is labeled as #5. However, that is one large composite piece, composed of both metal and the black plastic component going into its side. Usually when a IACV comes out of a GM or most motors I've seen, it's just the little black box you unbolt, which contains the "plunger" or "pintle" or whatever, and that's it. It's barely larger than a D battery. However, in that diagram, they're showing that I might remove the entire metal tray that the little black box is bolted to.
So then I decided to just ignore that diagram and unbolt two gold-colored bolts I found which seem to only hold the black box in place. However, once I got a video camera underneath the throttle body to inspect those bolts, they have a bolt pattern I've never seen before... It's like a 5 point star? Not a hex or torx. I can google more to figure out what that pattern is (I'm clearly inexperienced), but I worried that perhaps this is an indication I shouldn't be undoing those bolts.
And finally - what's the trick for getting under there? Do you remove the whole throttle body? Or do you reach underneath the throttle body and unfasten the IACV without looking? I've been doing this whole thing by recording video with a flashlight to see what's under there and then reach under and feel with my hands.
Finally, bonus points if you know where to buy one of these. They're usually $20 to $35 for any car on the road, and for some reason I'm seeing them for $1,000 for our cars. What in the actual hell, it's a toyota.
(Reference of crazy price: https://www.lotuspartsonline.com/p/L...120E6377S.html