Well today when I was out with the Max, something odd began to happen. It could be the cold weather but everytime I would apply the brakes to stop for a light, and just before I came to a full stop the engine idle would drop to around 500 rpm, but it just felt odd the way it happened, and when I was driving on the road where my house is, I let off the gas for a turn, and the engine almost stalled. What could this be? BTW its a 98 Auto SE.