RM38T0EC _51 Engine / Hybrid System _144959 M20F-FXS, M20G-FXS FUEL _0604359 FUEL PUMP(for High Pressure) G

M20F-FXS, M20G-FXS FUEL  FUEL PUMP(for High Pressure)  ON-VEHICLE INSPECTION  


PROCEDURE

Hide 1. FUEL PUMP ASSEMBLY OPERATION

a.

Check fuel pressure.

i.

Connect the GTS to the DLC3.


ii.

Turn the power switch on (IG).


iii.

Turn the GTS on.


iv.

Put the engine in Inspection Mode (Maintenance Mode).

Powertrain > Hybrid Control > Utility
Tester Display
Inspection Mode
50005 397 2103

v.

Start the engine.


vi.

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

Powertrain > Engine > Active Test
Active Test Display
Control the Target Fuel Pressure Offset
Data List Display
Fuel Pressure (High)
50004 372 6 265

vii.

Select the Data List item: Fuel Pressure (High).


viii.

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.



b.

Check operating sound.

i.

Start the engine.


ii.

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.


iii.

Stop the engine.