the plug i replaced was completely black and cracked..... and the ignition coil pack had a loose lead and only one fixing bolt screwed in!! thought i had fixed it , but the smell came back this morning . turns out it was a completely seperate issue! , opened the hood , but this time left the engine running...... only to be greeted by a fine spray of shell vpower 10 feet in the air. someone has fitted one of those little round chrome after market fuel filters in the rubber hose between the copper fuel line and the injector arm inlet. the jubilee clip he had put it on with has split the rubber ever so slightly , unnoticeable when the engines off and the hose isnt under pressure. so i've been spraying fuel onto the foam padding at the back of the engine when its on!! hence why no obvious leak but a god awful smell when the A/C was on. one wee rubber hose and a new clip later , disconnected the battery to reset the ECU and fuel pattern ......and the problems gone!

still going to get a new FORD coil pack though cause the one thats on it appears to be a shitty japanese one . and a treat it to a new MAF meter , k&n box and a new manifold and aftermarket exhaust now to help it breathe!