miss boxster s

[miss boxster s]

i have the reversing light staying on problem we have brought a new sensor but just couldnt seem to locate it on the engine yesterday ,we looked at diagrams on the net but it wasnt where it said ,mine is the 3.2 model ,can anyone tell us where to locate it as the diagram we saw we think was a 2.5 or a 2.7, help help help