my ea falcon, multipoint, miss's every now and again at idel and the engine runs generally rougher than all other ea's ive driven, but it does have its power, ive replaced nearly everything, distributer cap/rotor leads plugs pcv valve, injectors cleaned out, compression tested fine done the diagnostic test it passes so i recon it has something to do with the tfi moduel, is their a way to test it and can it be taken off the distributer or is it part of it?