Battery Power Loss
 

Whilst offshore the battery on my car died. Prior to going offshore I had my car re-mapped and it felt far different from my standard WRX. However since getting the power back into the battery my car feels sluggish and does not seem to have the same zip that it did after the re-map.

Does anyone know if battery power loss can affect the ECU and have reverted my car back to standard?

Also I have noticed that my stereo no longer recognises my sub and amp so my stereo is sounding gash again. Any suggestions or advice about either of these wee problems would be grand cheers.