Help needed losing my mind now here goes link G3 running rb25 run perfect for years then developed an ignition misfire on high boost, changed coil packs, ignitor, tried another ecu from another car, cas, changed wiring for cas still misfiring but now it's cutting out, it brings up high voltage of 23 volts then cuts out, changed alternator and checked its charging perfect 14.4 volts all across the Rev range but still shows fault high voltage in Ecu, if anti lag Switch is on voltage is stablizied, checked all earths, wiring etc etc HELP
