Fuel Pump Control

When the ignition switch is turned to ON (II) or when the engine start/stop button is in ON mode, the ECM/PCM grounds PGM-FI main relay 2 which feeds current to the fuel pump for 2 seconds to pressurize the fuel system. When the engine starts, the ECM/PCM grounds PGM-FI main relay 2 and feeds current to the fuel pump. When the engine is not running and the ignition is ON (II) or the vehicle in ON mode, the ECM/PCM cuts ground to PGM-FI main relay 2 which cuts current to the fuel pump.