Yeah…spray Carb or TB spray cleaner onto a rag…if you simply spray it… The sprays evaporate a bit too fast for my taste to have sufficient time to “work thru the crud”. The solvent action of the spray has more time to work when on a rag…and works pretty good with the friction of the rag and wiping it physically …instead of simply using the pressure of the spray itself…savvy? If the Butterfly valve in the TB is too deep or buried for you to physically touch it…then you are stuck simply using the pressure of the solvent from the can.
I always Spray/wet a rag with some Spray (Carb, TB spray, hell even brake cleaner and Starting fluid works)… reach into the throat of the TB and wipe it out… Open the butterfly valve and wipe its edges clean…wipe where the valve edge seats as well. Takes some fiddling to do thoroughly. You need something like wood or plastic to help hold the Butterfly valve open when you are trying to reach the Far side of the TB butterfly valve and its edges. Its kinda self explanatory really but the idea is to clean off the butterfly valve and where it seats in the TB itself and any small ports or holes in the wall of the TB itself.
In addition…since this is a Fly By wire…disconnect the battery when you do this. This will force the TB drive motor to go thru a “relearn” upon start up…which is good since you will have been reaching in there and man handling that valve…the removal of gunk can alter the Butterfly valve angle slightly…so a relearn is nice to do afterwards.
Respray that MAF as well while you are at it, it will most likely be disconnected at this time or not hard to get to anyways. If you see any holes or ports inside the TB make sure those are clean n clear…the red spray extender on the spray can is nice to use for this…it reaches in there nicely.
Dont forget to be using a RAG and spray to WIPE off these surfaces… Many people rely on the spray itself to do the cleaning of the TB…I find wiping it physically works best…after wiping it…you can then at the end, hit the entire area one last time with spray alone. Pretty simple…and often produces results.
I also suggest doing a Air Idle Valve lookup on some parts sites…look at the picture they show you, this is supposed to a picture of the AIC valve…It very well may be incorrect…but just see if you have the same part that comes up in that picture. Ive looked it up 3x and each time have been shown an AIC valve picture… Supposedly…you do NOT have an AIC valve. My thinking is that this is either incorrect…or the parts sites are wrong…or its a sort of Semantics issue with the naming convention of the part. Wont hurt to look it up…it takes a few seconds really… just see what I am talking about here.
Let us know…Good Luck