the ecu won't trigger injectors without triggering spark.. therefore if the same on two ecus then it is unlikely to be an ecu fault (unless something on the car has damaged both ecus which is highly unlikely) therefore it has to be coilpack or wiring.
Unlikely to be leads as not going to get all four fail at once, it would run on two cylinders.
It would be strange for coilpack to fail but possible.. could well be wiring issue to coilpack.
From memory the coilpack has 3wires to it.. 12v and then the trigger wire for front two cylinders and rear two cylinders. check there is 12volts with ignition turned on, on the from memory yellow with red trace.. and the other two wires are red and a blue iirc.
Simon
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