Im getting a ticking on my 2000 gtp. At first i though it was the blower coupler but i dc the blower and it still ticked so i thought one of the rockers so i took a screwdriver to each valve cover to see if i could hear where it was coming from and it didnt seem to hear it at all. When i put the screwdriver on the fuel rail it seems like thats where its coming from. Could this be an injector?