EGR 1&3

Ran a check on my car cause it was throwing a code. It says that it is my EGR number 1&3 sylnoid. What do I need to do? Where are they, and aprox. cost?Thanx

to my knowledge there is only one EGR valve

there's one valve, but i think there are multiple solenoids. im not sure cause im no tech, but i think you have to replace the whole valve and not just the solenoids...