Ok, I just swapped the stock motor for a B16A and have the common code 7 that results from the TPS in a lot of them. Getting the black smoke, smells rich, all the standard symptoms of a bad TPS. The only problem is, the TPS has been switched out several times in a vain hope that I was just having bad luck. Then we put in my friends good TPS and it's still throwing that code 7. Everything seems to check out in the numbers, and quite frankly, we're stumped by this. The car runs great as it is, we did have to switch out the CPU because of a hesitation and that worked fine for that problem, but the code 7 just won't go away. Anyone have any other suggestions or recommendations to try? My friend owns a Honda shop and has done many such swaps, and this one just has us both a bit confused. Thank you.