Hello, recently I've had soem trouble with my 2001 Acura MDX; the first problem was a malfunctioning battery (replaced it) but the second is that the car shuts off at low RPM occasionally. For example, I turned on my car and was sitting in the garage and it randomly shut off. Then when I was at a red light a couple of weeks later the engine turned off again. Now the car has no problem starting back up, but I want to know why it keeps shutting off on me? I did notive that it happened more times during the winter when it was very cold, but that may not be relevant. It's got 155,000 miles on it but runs completely fine, thoughts?