Dash warning light!

[Irish911e]

I have recently purchased a 1967 911T as a winter project, the engine in the car will be replaced eventually with a 3.2, but the body is first on the list. The problem is a warning light in the dash I presume its the oil warning light comes on under braking,cornering. The oil level is fine and the oil pressure is good also.

Could this be just a faulty sender or switch? any ideas..