A quick way to clear the memory is to-->Disconnect the positive battery cable.If you just disconnect the negitive one, the computer still get's a little draw from the positive. Turn the key on and off 3 times. Leave battery disconnected for at least 30 seconds. Reconnect battery. That's how you clear the memory. Then go out and drive the hell out of it for a while.DON'T baby it. The computer get's use to it and you car will perform a little better if you drive it hard at first.