Component Location
General Description

Fuel rail pressure sensor is mounted to fuel rail and it senses fuel rail pressure.

GDI ECM operates fuel pressure control valve with the signal from fuel rail pressure sensor to control optimized RPM and rail pressure.

DTC Description

If sensor signal input is lower than 0.3V during 0.5 sec, ECM sets DTC P0192.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

Signal check, low

1.

Poor connection

2.

Open or short to ground in power circuit

3.

Short to ground in signal circuit

4.

FPS

Enable Conditions

•

IG ON

Threshold Value

•

Sensor voltage < 0.3 V

Diagnostic Time

•

0.5 sec.

MIL ON Condition

•

3 driving cycle

Diagnostic Circuit Diagram
Signal Waveform & Data

Fig.1) Normal waveform of FPS at acceleration.

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