The OBD2 port is in the center console under the little coin tray in front of the shifter on automatic 850s. Your manual trans center console is slightly different so YMMV. FWIW my '95 850 with manual trans didn't have OBD2. Manufacturers are legally obligated to put that plug within reach of the driver. Poke around and see what you can find.

I have a "Scangauge II" that I've used for years to read codes and keep track of things live, like water and intake temperature, battery voltage, and speed. It's a great thing to have for those of us who like to keep track of exactly what our cars are doing. The Scangauge is a bit old fashioned these days; I'm sure there's cheaper bluetooth enabled devices that pair with your smartphone to do all the same things.