Is there anything other than a faulty ecu that would cause the coil packs to burn out ? 2 went swaped round to work out which ones and which plugs, replaced 2 with used but working ones, they lasted less than 2 hrs and both replacment ones died, have replaced them again and put a new earth to the head ( clutching at straws ), engine light is on even though its running on all 4 again, getting it plugged in on sat to get the fault code