ok, the car is a 91 civic with a jdm b16 swap, pr3 ecu and everything is wired correctly and no c.e.l.'s. the problem is, while driving long distances at a steady rpm, the car will start losing power and bucking like it isnt getting fuel if i keerp the throttle in the same position but when i give it gas it will jump to regular power and feel normal untill i let off and return to a stable position, it will do it again. ive found a solution is while the car is still in gear turn it off then turn it back on and that will fix the problem for like another 20 mins but then it will start again untill i turn the key on and off again. what could the problem be?