I just installed my apex vafc vtec controller in and now my check engine is on. Do any one know why and how to turn if off. And who do you set it so that the vtech opens sooner on a d16z6?

 

You probably installed something incorrectly if your cel light just came on after the install. Recheck your wiring and make sure everything's correct. Otherwise, jump the codes and see why your cel light is on.