Alright, just did a D16y8 head swap onto a D16y7 bottem end. At this time i have a idle controle problem. When the engine is started the car idles at about 1500rpm.....it will float between 1500rpn and 1000rpm. When driving the idle acts the same. Anybody have any ideas what it could be. I threw a check engine light about 2 days after the swap. still working on that problem.

 

i also think that i have a broken motor mount. When i start into first the knock comes from the back. When i come to a stop it also makes a knocking sound in the back.