Have a 1992 pickup 2wd with 22RE engine. The idle air control valve is mounted on the bottom of the throttle body, and it has two coolant ports/in and out.

Pretty sure the valve is partially sticking. Cold start crank works fine, and the idle comes down some after engine warms up. I have the idle screw set right now, so it does not idle high enough for the fuel cut to engage. I have to keep the idle screw set on the high side because randomly every now and then the idle goes to normal.

I can buy a new Standard Motor Products AC141 idle air control valve for about $85. As far as I can tell, this part is made in Japan? Does anybody know if it comes with a new gasket? If it does not, I am going to have to buy a Toyota gasket. I already have a throttle body gasket in my parts bin.

About getting the idle air control valve mounting screws out. Hopefully, I can get them out without stripping, or one of them breaking off. Any tips for getting them out?

 

This tool is designed to keep a stuborn screw from stripping.
https://goo.gl/images/wdfHaK

How ever if it's completely siezed the head is going to come off and you better have your extractor set on hand.

 

Don't have an impact screw driver set. That will be on my list too!

If a screw breaks off, it's going to my local automotive machine shop.

 

Oh I missed the "automotive" bit of that, but still..

My local "machine shop" only works on trains

Best of luck sir!

 

Got the Standard Motor Products AC141 idle air control valve in today that I ordered from Rock Auto.

This SMP part is from their Intermotor import parts. Yes it's made in Japan. And yes it came with a gasket.

I can take pictures, but Yota1 Performance Engine and Machine has the same part I have with pictures. Yota1 claims that it is an Aisan OEM Factory Toyota part. Mine has the 1-B stamped on the business side too just like their pictures.

https://209yota1.com/products/aisan-...ota-22re-89-95

 

Got her done!

Those four idle air control valve screws would not budge after being on there for 26 plus years. I soaked the screws in penetrating fluid too. Had a very long phillips #2 screwdriver with a fat handle, and I could not move them one bit.

Thought about getting the impact that was mentioned earlier, but I did not see a good way to hold the throttle body, and strike the handle on that type of impact screwdriver.

Went down to Harbor Freight, and bought a 1/2 drive socket set that had Phillips 2 thru 4, and it had a few slotted sockets as well. Used the #2 phillips on my 1/2 drive cordless impact, and those screws came right out no problem. I cleaned the screws, oiled them, and re-used them again.

6 Pc 1/2 in. Drive Screwdriver Bit Socket Set

 

Nice job!

Please don't forget to update once you get it all back on, so we're not left wondering if you got the root issue solved

 

I will!

It's already back together. Going to take a few hot and cold cycles before I get the coolant level where I want it. Have to check for cold leaks tomorrow morning. I did a flush and fill with new coolant while I was at it along with a Toyota thermostat.

At this point in time, I did have to turn down the idle via the idle screw, so something has definitely changed with the installation of the new valve. I will drive it for a few days, and then post my results. They are positive for now.

 

Yes it's fixed finally!

 

Yay! Another one is fixed!

Enjoy the happy 22R-E!