Have finally located the map sensor YES

stuck to the side of the inlet manifold behind the alternator.

Whist getting alternator off noticed a coroded central pin which has now broken off has made me wonder if enough elec was getting to the spark plugs but anyways the map sensor was rank so cleaned off and will try tommorrow if no joy with that will try a new one but now need an alternator connection which prob means a whole alternator but hay ho now feel like im getting somewhere