Just got done swapping a D16Z6/auto into a 93 dx that was a D15B7/auto. And I'm having some serious bogging down issues. The car hesitates like crazy. There was some smoke coming from the cat conv so I thought that was clogged so i dropped the exhaust and have it now just dumping off the manifold which helped but still bad. I changed out the plugs, wires and fuel filter. Any other suggestions?Ideas? anything? I also am running the stock auto ecu p06 until i get a p28 auto ecu. Could that be part of the problem?