Hi, basically missfire started friday night on the way home from work cleared for about 30 seconds and then ran like a sack of S**T again! First thing i did swapped plugs and coilpack but no luck then tested injectors which are 15ohms (fine), feed to the injectors which revealed injectors 1 and 4 aren't firing, checked valve clearances which are fine. Brings me to the conclusion that it must be an ecu fault ( pins 26+27) as im getting a feed to the injectors but no earth at a guess hence why injectors aren't firing? (All plugs dry ) any ideas as to what else it could be or wether or not my ecu idea is right would be much as appreciated....