I`ve replaced the map sensor,spark plugs QC57 ,checked the tps resistance and seemed ok,adjusted the phase sensor gap (was 0.55mm now set to 2.5mm.replaced coil (put old coil back as no different).It is a lot better now and the flat spot gets less as it warms up,after approx 10-15 minutes (bear in mind that i`m in oz and it`s 22 degrees at 6 in the morning).Now it`s just a very small flat spot.I think I`ll get a tps and rule it out ,need a spare anyway.I`ll let you know how I get on unless you have any other suggestions!