I just got my wife's car back from the mechanic who fixed it. He told me that there is a sensor which has no piping connected to it, and he have no idea where it should be connected.
The issue is, I do not know what the sensor is called, so I cannot use a simple google search to try and find out how it should be connected and what its actual function is. It would be great if someone can identify the sensor for me and probably also tell me what it does, and where it should be connected. Just a note, it is electrically connected to the car, it is just the mechanical connections I'm after.
Additional info as requested
It is 2005 model Chevy Spark 800cc
The only numbers and words on the sensor are 5F24 and KONG HWA
The two wires connected to the sensor are red and grey respectively