Misfiring on the num. 4 cyd. I put new plugs & wires in

Check the #7 spark plug and coil, also the fuel injector, make sure its clean and it's connections are good. An easy way to check the coil is to switch it out with another cylinder or buy one new and see if it makes the difference. The same for the spark plug, if neither one of these items makes the difference look to the injector.

Change the spark plug wires.

Learn how to diagnose and repair engine misfires without engine code...

Follow your coil wires back to the connectors for the ECM the wire could be corroded from cutting insulation to check previously or the coils connector check for continuity of the wires all the way back to the ecm

4 cylinders misfiring? Did the new plugs and wires correct the problem? If so, for how long?
Was oil coming out of the cracked hose?
We Need more information in order to diagnose this problem.

My information says 1-4-2-5-3-6. You can call your local dealer, ask for the service dept. they should tell you. But I think this is correct. Hope this helps.

Check number four spark plug. The gap could be off causing it to mis-fire.

Most likely I a would suspect the fuel rail had moisture in it. If you checked emissions it would most likely show no HC and alot of 02 and no CO. If it does show alot of HC then I would suspect sticking valves intermittantly . The pinging really points to no fuel issue tho. If you pull the injector connector off and no change then I would remove the fuel rail and inspect. Also make sure the wires are in the correct locations. It easy to get them wrong.

put the dots together, pull out num 1 plug bring num 1 piston up too top dead center on compression stroke,

CHECK THE FUEL INJECTOR, CHECK CYLINDER COMPRESSION, CHECK THE PLUG WIRE OR COIL IF IT IS DIS.