rpm's not working...

i had my engine cleaned at the carwash yesterday so i was coming home and my check engine light turned on and after that the car would shake. so i ckecked the spark plugs and 3 were wet! so i dried them out and it turned on fine but i noticed after that my rpm’s werent working. what could it be… anyone?? thanks…

Check the CEL code and go from there.

u probably fired your distributor??