Check engine light came on after clinging engine today car feels sluggish

Went to car wash detail spot so yes they power washed engine bay and engine looks great but now it feels like crap and cel is on

first of all,you "CAN NOT" SPRAY the engine with water,or power wash the engine.there is no telling what is wrong,could have fried several things!to much electronics on these newer/today's vehicles.that is a NO-NO.you could do that in 1975,after covering a few things up with tin foil,but now in 2015,NO.you need to get it check out,soon.good luck.