Hi I just recently finish completing my GSR motor swap into my EK civic. Now the only problem I'm having is idling problem. My battery meter needle keeps going up and down and something drop as low as 12s and sometime 11. When it comes around 11.9 and you tap the gas in neutral the car will stall. Can someone please help me thanks. Oh yeah I forgot to mention I checked my idling control sensor and TB sensor and I still don't understand what's going on.