sometimes when im sitting at a red light the cars rmps go crazy and cause me to stall it even does it sometimes when im driving or if its just at idle. this problem didnt happen to me b4 i changed the battery and after i did thats when the car started acting up.....could it be the ecu needs to be reset? i know this is dumb but the car has an auto ecu in it as well. could it be because the car is a 5 speed with a auto ecu?