oh.. EC = earth cables... also known as GK = grounding kit
alien,
like this...
GK = better current flow, not stabilized voltage
VS = Stabilized voltage, but not better current flow
GK + VS = better current flow + Stabilized voltage
plz help me, i'm want to know which is the tachometer wire pin at the ecu! plz tell me the color and the pin number of the hyundau ecu connector. thank. i'm come from malaysia