911 Carrera 2 Targa F6-3600cc 3.6L SOHC (1992)
This image shows both the thermostat (8) and the oil pressure sensor (5) on the center of the engine, closest to the clutch (9).
Note: This image also shows what appear to be carburetors, it is a type 2000 engine 901/01 and is included here only to show locations.
This image shows a closer view of the thermostat and the oil pressure sensor.