NR Series FUEL  FUEL PUMP(for High Pressure)  ON-VEHICLE INSPECTION  

Connect the GTS to the DLC3.

Start the engine.

Turn the GTS on.

Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure Offset / High Fuel Pressure Sensor.

Powertrain > Engine > Active Test

Active Test Display
Control the Target Fuel Pressure Offset

Data List Display
High Fuel Pressure Sensor

50004 372 6 47

Check that the fuel pressure fluctuates when the target fuel pressure changes.

HINT:

The target fuel pressure operation decreases the target fuel pressure by 12.5% or increases the target fuel pressure by 24.8%.

If the result is not as specified, replace the fuel pump assembly or fuel pressure sensor (fuel delivery pipe).

Start the engine.

Using a sound scope, check the operating sound of the fuel pump assembly.

If no sound can be heard, check the fuel pump assembly, wire harness and ECM.

Stop the engine.