I have a slight problem. I own a 90 CRX Si with a D16Z6 swap, a HOLLEY fuelrail, stock CRX Si ECU, and a MSD VTEC activator, I bought it like that, and the check engine light will not go off. Is it because of the CRX ECU? What could it be? I think I'm running rich on fuel to could that be the problem? If so how do I correct my air fuel ratio with out a fuel/air gauge? Do I need the fuel/air gauge to fix the fuel/air mixture? HELP!!!!!!
My head hurts now.

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[Modified by PocketRocket, 1:22 AM 8/28/2002]