CPU 300% & 100% Exhaust Fan after light water spill on keyboard

Thanks, I tore it down and uploaded some pictures, I don't see anything obvious but I'm not sure where I'm looking for temp sensor or whatever is causing it to think it is overheating.

Well the good news I don't see any staining on the logic board around the SMC which is what I had feared.

That pushes to the trackpad as the likely area. While not clear in your pics I do see salting on the solder joints and staining. So you'll need to replace it at this point MacBook Air 13" (Mid 2013-2017) Trackpad and here's the guide MacBook Air 13" Mitte 2013 Trackpad austauschen. If the cable has staining you'll need to replace it as well MacBook Air 13" (Mid 2013-2017) Trackpad Cable

I never got notified you responded.

Is it something I can try cleaning connectors first? The circuitry I can see looks really clean.

Do you know what part of the trackpad is the circuitry for the sensor?

@billybobtimmy - Cleaning is always iffy on a trackpad. Replacing is the better direction. There was enough staining that you would have needed to desolder components to get under them to clean.

It all comes down to skills, time and costs!

I just took out the trackpad and will order a replacement, but I am confused, it looks spotless. It is where the water was pooling for a brief second, but I see no signs of water, corrosion or damage. It looks brand new.

Is the thermal sensor on the trackpad board? Seems an odd component to control that but I have seen other posts list the same thing as the source of the problem.

Thanks for your help by the way.