Forgot to mention, it has a replacement ECU of the same part number. (Been tested with 2 other different ECU's of the same number from running vehicles)
New:
Coil pack(s).
Leads. Plugs are platinum, and are all fine.
Injectors
O2 sensor
Fuel filter (recent)
Been tested:
TPS
Crank sensor
MAP sensor
wiring continuity. Mobile sparky reckons the wiring in the coil triggers has a possible interference from the dash (!) as the scantool reports an external interference in one of the coil trigger wires (didnt say which one) and no-one bothered to isolate the cause.
Yesterday, I found the cheap replacement coil pack has blistered the potting underneath the 1-6 coil, so if the wiring was faulty, that could have fried both the replacement coil pack AND the replacement ECU. The coil trigger wiring is now external to the entire harness BEFORE fitting the new coil pack, so a short there is impossible. Now it might need another ECU due to a possible wiring short cooking the coil driver again.
I've picked this up from yesterday after two weeks of others fucking with this thing, and my Dad is going crazy (he is 82 and needs the car).