keep getting code 84 and light flashing on now and again, car drops on to 3 cylinders then comes back on to all 4. doesnt happen all the time, i drove 50 miles down the motorway today before it did it.
im thinking maybe wire is broken, ie the switched earth to the injector as when it does it, the bore seems to fill up with more petrol than it can burn and the plug goes wet. anything else i can check before i spend a while replacing the wire tomorrow? have cleaned the earths that go to the fuel rail bolts but theyre actually more for the earths of the dizzy etc and stuff down that end of the loom.
maybe inside the ecu though as well, not entirely sure where to start. all help greatly appreciated.