firing on 2/3 cutting out all when hot

  1. #1
    my gf has a saxo 1.4 westcost,

    the problem is the car starts fine drives to where she wants to go, then within 10 mins back in the car start it up and a few mins, misfires like hell all the way through the rev range, engine managment light comes on just before it cuts out, then we have to retstart it, still spluttering away ,

    engine managment light comes on just before it cuts out, then once restarted the managment light goes out,

    the problem first started months ago, every now and then it would just splutter for a second then carry on as normal

    please help as its doing myhead in,

    i have replaced cam belt, plugs, oil change, cleaned the throttle body and sensors,

    could wel be the coil pack but im hoping its something else and u guys will know,

    thanks
  2. #2
    Often when a coil pack is worn out it causes a misfire when the engine is hot(mine did)
  3. #3
    will be coil pack. mine did the exact same, but when wet, as the rubber was perished so the plug tops got very damp!