hey guys, i noticed my idle sucks. anyway, i was looking around and checking some things and i noticed that if i remove the vacuum line off of the fuel pressure regulator the idle does not change. also the wires coming off of the egr valve are dried, and brittle and when changing out the heater core this weekend they got broken. i started the car and i ran just the same. does this mean the egr valve is bad or FPR is bad. any help is greatly appreciated.