Fuel Pump (for High Pressure)

1UR-FSE FUEL: FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

1. CHECK FUEL PUMP OPERATION

(a) Check the fuel pressure.

(1) Connect the Techstream to the DLC3.

(2) Start the engine.

(3) Turn the Techstream main switch on.

(4) Enter the following menus: Powertrain / Engine / Active Test / Control the Target Fuel Pressure / User Data / Fuel Press.

(5) Check that the fuel pressure fluctuates when the target fuel pressure changes.

HINT
The Control the Target Fuel Pressure operation lowers the target fuel pressure by 12.5% or increases the target fuel pressure by 25%.

Standard:

Fuel pressure fluctuates in accordance with tester operation.

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

2. INSPECT FUEL PUMP ASSEMBLY

(a) Measure the resistance of the fuel pump.





Standard resistance:





(a) If the result is not as specified, replace the fuel pump assembly.