no power when warm
 

i hate to star another thread but i need to get this solved. i have a 91 runner with a 22re, and when my truck is cold it runs great but after about 4 min or so of driving i have no power the only i can accelerate is with the pedal to the floor. i can even hold 50 in 5th on flat ground unless i have the pedal on the floor. i think it ether the o2 or the coolant temp sensors but i dont' want to just throw parts at it any thing else i should check? this is what's been done recently new plugs, wires, fuel filter, cone air filter, new exaugst, new clutch, cleaned and tested injectors, the timing is at 7-8 BTDC timeing chane has maybe 50k on it.

Thanks
-Tom

i had a chance to drive it longer last night and noticed after about 20-30 min of driving it runs good again any thoughts
cold good, warming up bad, and hot good
now i'm lost

You should be getting engines codes. Does your check engine light work?

if i unplug something major like my tps or o2 i get a cel but other wise it's off