I'm also struggling to find which plug goes onto the oil pressure warning switch? Does anyone have a picture of it? know what colour wires go to it maybe? Or where abouts in the loom it is?
Here are the pictures of the two unknown plugs.
http://s1249.photobucket.com/user/02woodm/media/2E8FD035-D075-4C71-8931-87B62A4E65EE-4093-000004BB122F1497.jpg.html?sort=3&o=2#/user/02woodm/media/DFB548FA-196A-4210-9DCB-32C5D0EB6CFB-4093-000004BB2022E3AB.jpg.html?sort=3&o=0&_suid=1366225520708006001020691807124
http://s1249.photobucket.com/user/02woodm/media/2E8FD035-D075-4C71-8931-87B62A4E65EE-4093-000004BB122F1497.jpg.html?sort=3&o=2#/user/02woodm/media/95EC5751-0F82-4C27-A585-2323EF8A71AC-4093-000004BB1B124A87.jpg.html?sort=3&o=1&_suid=1366225520708006001020691807124
http://s1249.photobucket.com/user/02woodm/media/95EC5751-0F82-4C27-A585-2323EF8A71AC-4093-000004BB1B124A87.jpg.html?sort=3&o=1#/user/02woodm/media/2E8FD035-D075-4C71-8931-87B62A4E65EE-4093-000004BB122F1497.jpg.html?sort=3&o=2&_suid=136622578807802546450137446295