1986 Nissan 200SX

Engine Performance problem
1986 Nissan 200SX 4 cyl Two Wheel Drive Manual

86 Nissan 200sx bogging(feels like the car is stalling but doesn't) while driving. It does this weather accelerating or not. Has a mild miss while idling. Have done complete tune up. Plugs, wires, dist cap, rotor, fuel filter, 02 sensor all new. Seems to quit if car is turned of then restarted. Have tested coils and fuel pressure, all good. Compression all good. No vacuum leaks. Computer is giving no error codes. Any ideas?
October 18, 2010.

Check and test the throttle position sensor and airflow meter to include a fuel pressure check

Oct 18, 2010.