High Pressure Fuel Pump Inspection

HIGH PRESSURE FUEL PUMP 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. Verify that the fuel pressure sensor is normal. (See FUEL PRESSURE SENSOR INSPECTION[L3 WITH TC].) Testing and Inspection




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, and LOAD, RPM PIDs on the M-MDS.

CAUTION: If the engine is run at a high speed, it could be damaged. When racing the engine, do not race it up to 6,700 rpm or more.

5. After the LOAD PID is 60% or more while the engine is raced with the accelerator pedal fully depressed, verify that the FUEL_PRES PID is approx. 11.5 Mpa.
- If not as verified, replace the high pressure fuel pump.