Ok recently I bought a 91 crx dx. I believe it was supposed to come with a d15, but a ZC was swapped into it. Everything Ive seen about the motor up until now is that its very similar to the d16a6 but with a more aggressive cam. Does anyone know anything else about this motor?? What ecu should I be running? (currently a pm5) Would a pm5 cause me to not pass emissions like it is now?? Is it DPFI or is it MPFI? Why do I have an old school looking throttle body lol?? Any info will be greatly appreciated!!!

Thanks

Only pic I have of the engine bay right now. If the weather is better tomorrow I should have some better ones up!!