you have to fit the correct map sensor for the installed chip, ie if it's a standard map sensor you must replace it with one, good oppertunity to go to stg 3 using 803's and a 3 bar with a new chip tho!!
also when removing the pipe off the map sensor in future remove the pipe off the inlet then un bolt the map, and remove the pipe from the map on a bench, saves snapping them like most do!!
steve