Fuel Pressure Sensor: Testing and Inspection

FUEL PRESSURE SENSOR INSPECTION [L3 WITH TC]

NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. Description and Operation

1. Connect the M-MDS to the DLC-2.






2. Turn the ignition switch to the ON position (Engine off).

3. Select the FUEL_PRES PID on the M-MDS.

4. 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.





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

Circuit Open/Short Inspection









1. Disconnect the PCM connector. (See Service and Repair.)

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 2P
- Fuel pressure sensor terminal B and PCM terminal 2R
- 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