Hyundai sonata 2.0t 2015 I think it’s a censor connected to the cooling system to a pipe connected to the throttle body. Not sure what it is but I can’t find it. This censor has a orange rubber around it so it prevents liquids from going inside but, when I check it there is oil inside. I just cleaned them all with censor electrical spray, and I drained and filled my Tran (a little unrelated) but Evap leak censor turns on and goes away; car randomly misfires.