hi danny the egr valve is at the end of your cylinder head above your gearbox, I'm guessing it is a z22se engine, have a look on ebay put in z22se egr valve blank , it shows you the egr valve so you what you are looking for in your engine bay , you could take it off and clean it with brake and clutch cleaner, take your battery leads off your battery for 10 minutes , this will clear the light on your dash but it will still be logged on your ecu,,,