Fitted Electrofil coil and Denso plugs, sorry Tony, Bosch are a reluctant special order from suppliers around here. No difference. Sent ecu to ATP for test/repair. Diagnosed faulty and rebuilt unit sent by return. Fitted, car started instantly and settled into sensible idle, but cooling fan ran constantly, even with ignition off. Code P0117, CTS. Sure enough, CTS open circuit on earth return to ecu, but that was not so originally. No pin data, so spent two hours tracing green wires with little numbers on them back to the ecu. Then 'phoned ATP for help and got straight through to Mike Walker. Apparently half of these ecu's sent for repair suffer internal earth problems, and a small number blow another earth on re-fitting. He suspects wiring faults on the car, but have not been able to prove it. On his advice I wired the CTS earth to the MAP earth and all problems were solved. Thanks for all help and advice, Peter