Limp Mode (Erratic Idle) (Help Needed)

[msamoeed]

Hi, so this is the second time that the car has gone into LIMP mode with the error code (p2135).
Both the time the car has been in rain overnight. Now i have checked out the engine bay the there is no water leaking into any sensor or throttle.

The car after a few mins becomes normal, starts picking acceleration.
However, i do wonder if this problem is because of the cool air that gets into the engine because of a sensor which i believe is not OEM.

Sharing the picture of both the scanner and the sensor below.


Please share your thoughts.