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?

 

wiring error

 

check water temp sender at back of head

 

relay thats stuck? their yellow one,s change both

 

Hi Rallye Chick, i would say the same has paul.
water temp sensor [ blue in colour] its located on the back of the head just under the heater matrix hose.
I had a same problem on one of my old 2wd cosworth.
CheeRs ash