ecu resetting...?

when you put in a new intake, does the engine learn on its own, or do you have to reset the ecu to realize there is a new system in??

I didn't reset the ECU until the CEL came on....

ok, so that means that your car drove worse after you put in the intake.. which means you should have reset the ecu as soon as you noticed a difference in performance... ill go ahead and reset it before i drive mine....

Can either of you tell me how to reset the ECU??

Thanks,