low power at times need help?????

ok so i have posted about this before but it has got worse. so i have a 95 taco and sometimes when i start it up and go to take off it loses all power and you can put the pedal to the floor it doesnt go just lugs and backfires through intake. but it clears up instantly and runs fine. also when im going down the road taking off mostly the engine lugs down and i can push the pedal down to the floor and the engine just instantly has power again. i have hooked diagnostic scanner to it and watched tps percentage, mass air flow pounds, and timing. all seems to be ok when it acts up. anyone got an idea????. maybe coil breaking down or distributor issues. has good plugs cap, wires, rotor button. mass air flow has been cleaned.


also has anyone noticed that with scanner the tps percentage with the pedal all the way down only goes to 75% and not 100 % is that normal or is it a tps issue?? if anyone has an idea i would appreciate it