firstly i would check the fuel rail pressure regulator. if the pressure builds too much then when the injectors open too much comes through because they are calibrated to run under a certain pressure and do not know if it increases so cannot compensate by opening for less time. secondly have you ever got it started and is it just really hard to start when cold if so then it will most likely be the cold start temp sensor, when things are cold the air is denser so the ecu allows more fuel in to compensate but if the sensor thinks it is colder than it is then the ecu gives more fuel than needed but generally once the engine is warmed up it is fine, try disconnecting the sensor and see if it fires up, also have you checked for an actual spark because if it is not igniting the fuel then obviously it just keeps getting injected, if there is no spark then it will most liekly be the coil, ford dry coils are absolute shit, if the vehicle was damaged it might also be worth checking the coil wiring because if the pulse feed that operates it has a break in the cable then the coil wont fire. the list goes on mate so once you have checked this lot then email me il give you some more things to check that will cause the same problem
