Hi guys, may be a noob question. Since the Hondata S300 doesn't utilize eeprom or anything alike to "upload" maps in a real time manner, would these maps get erased or reset to factory setting if the battery was unplugged say anything more than 5 minutes?

Update: it just feels like my car is slower now and dumping more fuel than it originally tuned to (poor milage compared to the first week I got the car).

 

The s300 system does not loose memory if you unplug the ecu or unplug the battery from the vehicle...

If your having issues with your tune after doing some kind of mechanical change, take the car back to your tuner for inspection.