i have a 92 civic 1.5. i just rebuilt the motor and replaces the transmission . since i did this my car is idleing fun. it sounds good then sounds like good, good, good, then it drops then starts, over. if i unplug the tps it will stop or if i give it alittle more gas. but the light does not come on when its studdering just when the tps is unpluged. i replaced the throttle body with 4 different ones and does the same thing. i also dont think that the engine power is not as strong as it should be. Help Please