General Information

Engine Control
P2290 Injector Control Pressure Too Low - General Information

Component Location





General Description

GDI ECM operates fuel pressure control valve with the signal from fuel rail pressure sensor to control optimized RPM and rail pressure. But ECM shows this DTC and enters limp home mode limiting fuel mass and maximum RPM in order to prevent abnormal control of ECM under the bad condition out of target rail pressure range.
Rail pressure monitoring error DTC shows indirectly the status of low pressure fuel and mechanical operating status of high pressure pump and fuel pressure regulator with the signal of rail pressure sensor and fuel pressure regulator.

DTC Description

ECM shows P0088 when the rail pressure is higher than the target rail pressure.(in case of cold start)

DTC Detecting Condition





Signal Waveform & Data




Fig.1) Normal waveform of FPS at acceleration.