i just swapped in a D15B7 into a 91 civic DX. I'm running the OBDI electronics, intake manifold and distributor, so basically its just the D15B7 head and block that I sawpped into it. The car will start but it just idles for a few seconds and then dies, if you try to give it gas it just dies instantly. I used new plugs(gapped them as well), new plug wires, set everything at TDC, tryed adjusting the distributor to see if that would make a difference but it didnt, reset the ECU still no difference, its not throwing any codes either. Any ideas on what might be the problem?