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. (See HOW TO USE THIS MANUAL.)




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.
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 21

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