UPDATE!!!
Changed back to original ECU.
Reason:
car failed to start today and battery ended up flat
so...
bought new battery and fitted though the bloomin alarm
and horn going off in my ear was a distraction I must admit dunno..
End Result:
NO ECU OR FLASHING SPANNER WARNING LIGHTS ON DASH
however....
"BRAKELIGHT CHECK" on trip computer display dunno..
WHAT ON EARTH IS GOING ON!!! :?