My wife's 98 Maxima has been having a cold start problem. In the morning, the car turns over, catches, then dies. You have to hold the gas pedal down and then start it. Give it gas when you start it, then it will idle down and be fine. It only has the problem on the first start of the day. It starts fine the rest of the time. There are no check engine lights or any other problems. The car runs great after it starts. I've done the basic maintainence to the car. Anyone have any suggestions?