How do i change the spark plugs on a 2002 jaguar s-type v8 i cant locate where they are? i pulled off what i thought was it and it looks like some kind of injector of some sort but i cant see the plugs anywhere???

The the injector are hook up to a fuel rail, the coil pack's and you have 8 on them sit almost next to the fuel injector's, the coil pack's are held on with a 8mm bolt, there round looking on top about 2" in dim. with a clip on connector, remove small bolt pull up on coil pack, coil pack will have a boot at the end, down in that hole will be the spark plug's, no rail or tube will be hooked to the coil pack, just the harness.Spark plug gap .50, but if your using Platinun +2 or +4 not adjustable. Hope this was very helpful.