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Hyundai excavator fault codes

Fault Codes:

Hyundai HX220 NL EPFC 148(91-0)

Fault Description:

Accelerator Pedal Position Sensor 1 - Data Valid but Above Normal Operational Range - Most Severe Level. Frequency >1500Hz detected at throttle input to ECM; Accelerator pedal or joystick position sensor 1- Data valid but beyond the normal operating range - the most severe level. A frequency exceeding 1500 Hertz was detected at the frequency throttle input end of the ECM.

Fault Location:

Severe derate in power output. Limp home power only; The power output has been severely derated. Only maintain the limping home mode