On-Vehicle Inspection

FA20 FUEL: FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION; 2013 MY FR-S [03/2012 -]

1. CHECK FUEL PUMP OPERATION

(a) Check fuel pressure.

(1) Connect the Techstream to the DLC3.

(2) Start the engine.

(3) Turn the Techstream on.

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

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

HINT
The target fuel pressure operation lowers the target fuel pressure by -12.5% or increases the target fuel pressure by 24.8%.

Standard:

Fuel pressure fluctuates in accordance with the Techstream operation.

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

(b) Check operating sound.

(1) Remove the injector cover (for bank 2).

(2) Start the engine.

(3) Using a sound scope, check the operating sound of the pump.





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

(4) Stop the engine.

(5) Reinstall the injector cover (for bank 2).