Fuel Pressure Sensor: Testing and Inspection

FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC]


NOTE:
- Perform the following inspection only when directed.
- The following vacuum values are indicated by relative pressure from the fuel pressure sensor.

1. Remove the charge air cooler cover.
2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to the ON position (Engine off).
4. Select the FUEL_PRES PID on the M-MDS.




5. After warming up the engine, verify that the FUEL_PRES PID is at the standard value under the following conditions.
- If not as verified, replace the fuel delivery pipe.

6. After connecting the spill valve control solenoid valve connector, clear the DTC.

Circuit Open/short Inspection




1. Disconnect the PCM connector.
2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- Fuel pressure sensor terminal A and PCM terminal 2H
- Fuel pressure sensor terminal B and PCM terminal lv
- Fuel pressure sensor terminal C and PCM terminal 2K

Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- Fuel pressure sensor terminal A and power supply.
- Fuel pressure sensor terminal B and power supply.
- Fuel pressure sensor terminal B and body ground.
- Fuel pressure sensor terminal C and body ground