Fault Codes:
Hyundai HX220 NL EPFC 271(1347-4)
Fault Description:
Fuel pump pressurizing assembly 1 circuitVoltage above normal, or shorted to high source.High signal voltage or open circuit detected atthe fuel pump actuator circuit; Fuel pump pressurization device 1 circuit - voltage higher than normal value or short circuit to high power supply. The fuel pump actuator circuit detects a high signal voltage or an open circuit
Fault Location:
Engine will run poorly at idle. Engine will havelow power. Fuel pressure will be higher thancommanded. The engine idles abnormally, the power output is insufficient, and the fuel pressure is higher than the set value.

