I have swapped a 94 1UZ into an 82 Supra. I have all of the emissions removed from the engine (don't even have any of the wiring attached). When I first fired the engine up it ran rough but got better as engine learned but still not great. It would also limit the revs to 4K RPM. I just sent the ECU to have the capacitors replaced as a couple were leaky. That made the car run significantly better. However, it still cuts out at 4K RPM. With that if I put the car at WOT from idle it only revs for 3800 RPM and spits and cuts at that limit. If I give it partial throttle then it smoothly goes up to 4200 RPM before the limiter hits. I do have a CEL on but the code is 71 for EGR which I have a hard time believing an EGR code would cause the problems I have. Anyone have any suggestions on where to look?