1986 Toyota Tarago same problem as 27/12/2013

Hi, some did get back to me but wanted more details - car is 1986 3-speed automatic Toyota tarago - 4YE GL MODEL - car after 10 minutes warming up or driving stalls. Car starts once again after stalling. I have had car checked by my mechanic. - Fuel pump replaced & presure checked - all o.K. - Checked distributor & coil - all o.K - engine check light only comes on when car is stalled ! Some type of codes were out & got reset. All electrical opponents checked with tester. All fluid levels o.K. { Water, transmission & oil } temperature sensor o.K. Also while driving the other day had fuel { unleaded } half full when orange fuel light & battery light came on together. Still mystified about these problems of my car - do I have to break down totally to rectify my car problems - what else could it be? Could it be the thermostat sticking / not reading the correct temperature of car? Temperature gauge reading normal when idling/moving ************