I have a 2001 ford mustang and i need the diagram

Get on google and type in 2001 ford mustang spark plug diagram.
Something should pop up that might work for you.
Usually if your changing the plugs just look for the wires that run on either side of the engine above the exhaust headers and just pull one off at a time and use a deep socket to remove them but you can go to any auto parts store and have them look up the pre gaped plugs so all you have to do is remove the old and put the new in. Very easy to do.