I have got an JDM B16A with the two O2 sensors on the Manifold. I have been told it is a common problem with swaps of this type. During the process of driving at a constant speed the car hesitates but it is not stuttering. Now it clears up when the gas pedle is depresed but then comes right back. And now it is starting to do it on acceleration too. I need help on this. And I need to know what to buy or do to correct this because it is very annoying. Thanks.