Where is oil pressure sending unit on 93 buick ultra?

On a 1993 Buick Ultra, the oil pressure sending unit is typically located on the engine block, near the oil filter. It is usually found on the driver's side, towards the rear of the engine, and may require some maneuvering to access, as it can be somewhat tight in that area. You may need to remove other components for better access, depending on your specific engine configuration. Always consult a repair manual for detailed instructions and diagrams.