I put a pulley kit on this weekend and now vtec doesn't seem to barely engage in first and second it doesn't until 6000 rpms. I also installed an aem cai and there was an extra vac tube that went to the old intake box. I just plugged it. Could this be causing the problem or is it a spark problem, fuel prob, injectors, I think the puleys are to tight as well that could be it.. Any suggestions.