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Home >> Honda >> 2007 >> Civic GX >> Repair and Diagnosis >> Engine Performance >> System >> Fuel System & Emissions System (R18A1 Engine) >> System Description >> Fuel Supply System >> Fuel Pump Control

Fuel Pump Control

When the ignition switch is turned to ON (II), the ECM/PCM grounds PGM-FI main relay 2 (FUEL PUMP) 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 (FUEL PUMP) and feeds current to the fuel pump. When the engine is not running and the ignition switch is turned to ON (II), the ECM/PCM cuts ground to PGM-FI main relay 2 (FUEL PUMP) which cuts current to the fuel pump.

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