LOW FUEL PRESSURE SENSOR INSPECTION [SKYACTIV-G 2.5T]

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Voltage Inspection

Note

•  The low fuel pressure sensor/fuel temperature sensor cannot be removed as a single unit. When replacing the low fuel pressure sensor/fuel temperature sensor, replace it together with the high pressure fuel pump as a single unit.

1.  Switch the ignition ON (engine off).

2.  Measure the voltage at the low fuel pressure sensor/fuel temperature sensor terminal D.

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•  If the voltage is within the specification, go to the next step.

•  If the voltage is not within the specification, replace the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

3.  Connect the M-MDS to the DLC-2.

4.  Start the engine.

5.  Access the PID/DATA monitor item FUEL_LO_P using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].)

6.  Measure the voltage at the low fuel pressure sensor/fuel temperature sensor terminal D when the FUEL_LO_P PID increases.

•  If the voltage does not increase, replace the high pressure fuel pump. (See HIGH PRESSURE FUEL PUMP REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

Specification (Reference)

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