93 sunbird problum

i have been having a problum with my 93 sunbird. every now and then the battery dies. usuly after it sits for a day or two or when it is vary cold. the battery is never over a year old. a simple bust gets it running again. what is draining my battery so much. the lights are never left on.
any help would be great and would be appreciated.
thanks

Check to make sure that everything is off. The glove box light, trunk light, under hood light. These can all drain a battery in a short amount of time. Otherwise you will need to start pulling fuses and with the use of a volt meter you will need to track it down that way. Remember, the computer will draw a small amount when the car is turned off.