Vitara 4WD L4-2.0L (2003)
Voltage Signal: Description and Operation
Battery voltage
The fuel injector is driven by its solenoid coil based upon the ECM (PCM) output signal.
There is some delay called as "Ineffective injection time", which doesn't provide fuel, between ECM (PCM) signal and valve action. As the ineffective
injection time depends on the battery voltage, ECM (PCM) takes voltage information to compensate it in fuel injection time.
