Earlier today, I decided to clean out my engine bay. All the silt from Mojave Road was bugging me. So I picked up a couple cans of Gunk Foamy engine cleaner. The engine was warm, but cool enough to touch so I sprayed the stuff on, let it sit for about 15 minutes and then misted it down. After that, I blew the remaining water out with the air compressor. Waited another 30 minutes or so, fired it up and the check engine light starts flashing.

So I shut it off, and checked under the hood again to make sure nothing was obviously wrong. No moisture collecting anywhere, nothing obviously out of place. Blew it out again, waited another hour. Came back, fired it up and it was the CEL was gone but it was stumbling. Decided to take a quick spin around the block and see if it was just wet sensors. The CEL came on, so I hooked the scanner to it. P0120(bad TPS) and P0302(Cylinder #2 misfire).

It's a '97 SR5, 4wd auto, 3.4l with 198k on the clock.

I'm at a loss with this one. Any ideas?