General Information

Engine Control
P0092 Fuel Pressure Regulator 1 Control Circuit High - General Information

Component Location





General Description

GDI PCM operates fuel pressure regulator (spill valve) with the signal from fuel rail pressure sensor to control optimized RPM and rail pressure.
High pressure pump adds high pressure to low pressure fuel from low pressure pump. Controling fuel pressure is done by fuel pressure regulator from 40 to 150 bar. Under the abnormal condition of high pressure fuel system, PCM contols fuel system as low pressure.

DTC Description

When PCM detects open in the spill valve control circuit, PCM sets DTC P0092.

DTC Detecting Condition





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Normal waveform of spill valve at idle.