Ford Fiesta 1999 Encore 1.3 Endura - High revving

[johnross]

Water kept dropping in expansion tank so got car into a garage, just been fitted with new cylinderhead gasket and replacement head (old was cracked). When mechanic restarted engine it starts ok and runs for few seconds then.... engine goes crazy! It starts to rev high very quickly, Have to turn off Ignition immediately. Is it something to do with TPS? have changed it with another 2nd hand one but same thing happened. Could both be wrong, or have been fitted wrongly? Do the engine management units ever go on these cars? They've said they have cleaned TPS connector plug. Can this happen if the TPS is not installed correctly? (It goes on with a little twist in the right direction)

All advice greatfully received
John