SSANGYONG 2004 Rexton 2.7XDi Workshop Manual page 419

DTC Trouble
P0193 Fuel Rail Pressure Sensor
Malfunction - Short
P0190 Supply Voltage Fault to
Fuel Rail Pressure Sensor
P0191 Fuel Rail Pressure Sensor
Signal Fault
DIAGNOSIS
DI ENG SM - 2004.4
Help
- The fuel rail pressure sensing values
are higher than specified values.
• Maximum sensing values: 1,600 bar
(Short)
- Check the supply voltage to sensor.
• Output voltage at 1600 bar: 4.055±
0.125V
• Output voltage at atmospheric
pressure: 0.5±0.04V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #25, #26 for short
and poor contact.
• Check the fuel rails and high pres-
sure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
- The supply voltage to fuel rail pres-
sure sensor is faulty.
- Check the supply voltage to sensor.
• Output voltage at 1600 bar: 4.055±
0.125V
• Output voltage at atmospheric
pressure: 0.5±0.04V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #6, #26 for open
and short.
• Check the fuel rails and high pres-
sure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
- The rail pressure drop is too high.
- Check the supply voltage to sensor.
• Output voltage at 1600 bar: 4.055 ±
0.125 V
• Output voltage at atmospheric
pressure: 0.5 ± 0.04 V
- Check the sensor and ECU wiring
harness.
• Check the ECU pin #6, #26 for open
and short.
• Check the fuel rails and high pres-
sure pipes for leaks.
- Check the fuel rail pressure sensor.
- Replace the ECU if required.
Torque Torque Delayed
Reduction Reduction Engine
(max.50%) (max.20%) Stop
O
O
O
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
DI10-59
Immediately Limp
Engine Home
Stop Mode