On a 1987 Mazda b2200 w 1930cc engine starts warms up and idles ok choke seems to operate fast after a block and a half will stall out no pedal response what could be wrong?

Try checking out your catalytic converter. it may be plugged which causes you engine to die after you drive it for a bit. try checking your gas for water that may be the problem also chek your fuel filter it may be plugged.