just did some did and tested my DIY VS using 12v batt. everthing is o.k, LED indicator light off when charging and on when fully charged. when removed the power supply (12V battery), the LED remain on... let the VS...
Using td04, wif intercooler and bov etc..the problem is that at 1-3 gear..i dint get any boost...only when at 3rd gear, and when speed is near to 100kph,then the boost slowly creeps up..at 4th gear i dint get any...