hi peeps just had craig do a rebuild on my engine and when he put my ecu back inn it was really bogging out on starting it up and on the throttle ??the ecu was fine and never had aproblem with it before. now craig fitted a 1.8 16v ecu on it and its running sweet as a nut. he told me to get a new ecu so i went to see matt brown and had two well working williams 1 ecu of him and im still getting the same problem as craig did???? has any one had this problem or no wot to do. craig has suggested check the loom?> i thought would it need configuing to the engine (ie) fuel/air intake consumption?>