FUEL PUMP(for High Pressure) ON-VEHICLE INSPECTION

PROCEDURE

1. Click here

   FUEL PUMP WITH SEAL SUB-ASSEMBLY OPERATION

   
   

   1. Check fuel pressure.

      
      

      1. Connect the GTS to the DLC3.

      2. Start the engine.

      3. Turn the GTS on.

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

         
         
         1. Powertrain > Engine > Active Test

            Active Test Display
            Control the Target Fuel Pressure

            Data List Display
            Fuel Press

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            11. 
                
            12. 
                

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

         Tip:

         The target fuel pressure operation decreases the target fuel pressure by 12.5% or increases the target fuel pressure by 25%.

         If the result is not as specified, replace the fuel pump with seal sub-assembly or fuel pressure sensor.

   2. Check operating sound.

      
      

      1. Remove the V-bank cover sub-assembly.

         Click here

      2. Start the engine.

      3. Using a sound scope, check the operating sound of the fuel pump with seal sub-assembly.

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

      4. Stop the engine.

      5. Reinstall the V-bank cover sub-assembly.

         Click here