I still don;t know y disconnecting the battery will only make the car "do good" for a couple of weeks then it becomes all slow and jerky again......didnt have any CEL codes and my MAF is only less then a year old and also my O2 sensors are less then a year old......almost lost to a stock accord yesterday at a stoplight the car just doesnt have the power at the time.......pull the battery out after for a while and is a monster again now probably for 2 weeks.........