The map sensor is right where stated, under the expansion tank bolted to the inner wing(bracket), it's on the underside of the bracket pointing downwards.
If a 2 bar it will have APS02/03 on it, if 3 bar it will have SPA05/01 on it.
Don't go fiddling with things if not sure, can be very very expensive in a cossie engine to do this!!
tabetha