Posted on behalf of a mate:

just finishing my mk2 escort running cosworth turbo engine, when taken spark plugs out all 4 pots were full to brim with petrol, i then took live feed off fuel pump and engine kept on running didnt cut out at all. tryed different ecu but still the same , any ideas?
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check the fuel regulator ISN'T shot!

have seen this before and the inlet manifold to be full as well!

 

if the map sensor is not working rite or is not getting a signal it will automatically overfuel the engine, i had this and it also meant my sump filled with fuel aswell!