Power on problems? Maybe temperature sensor

I have spilled water onto my MacBook's keyboard. I opened it up, to let it dry out, and when I put it back together and tried powering it up nothing happened. No reaction when pressing the power on button.

I dissembled entire MacBook again, and accidently uprooted one temp sensor cable, but put it together just right, and I think it is working fine.

But, now it is powering up but during the loading process of the OS it suddenly shuts down.

Does it have to be with that temp sensor or with something else? How can I fix this?