check engine codes

So i suddenly had issues with hard starting, then choking, bucking and stalling. So i get prepared to check my systems. I started down my check list: 1.) O2 sensors (check) 2.) Throttle Positioning Sensor (check) 3.) Crankshaft Position Sensor tested with a meter for continuity (open - check)...

I'm terrible at figuring out a pattern with these flashing lights. Can someone help me diagnose please? T.I.A. 91 2.5 5 speed, no A/C,