Fuel System On-Vehicle Inspection

Check fuel pump operation.

1. Connect the intelligent tester to the DLC3.
   

2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
   

   NOTICE:

   Do not start the engine.

3. Select the following menu items: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.
   

4. Check for pressure in the fuel inlet tube from the fuel line. Check that the sound of fuel flowing from the fuel tank can be heard. If no sound can be heard, check the integration relay, fuel pump, ECM and wiring connectors.
   

Inspect for fuel leaks.

1. Check that there are no fuel leaks from the fuel system after doing any maintenance or repairs. If there is a fuel leak, repair or replace parts as necessary.
   

Turn the ignition switch off.

Disconnect the intelligent tester from the DLC3.

Discharge the fuel system pressure (RAV4_ACA30 RM000001IQW01CX.html).

Using a voltmeter, measure the battery voltage.

Standard voltage:

11 to 14 V

Disconnect the cable from the negative (-) battery terminal.

Disconnect the fuel hose from the fuel main tube (RAV4_ACA30 RM000001IQW01CX.html).

Install SST (pressure gauge) using SST and a fuel tube connector as shown in the illustration.

SST

09268-31013(09268-41500,90467-13001,95336-08070)
09268-45014(09268-41200,09268-41220,09268-41250)

Clear up any spilled gasoline.

Connect the cable to the negative (-) battery terminal.

Connect the intelligent tester to the DLC3.

Select the following menu items: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Measure the fuel pressure.

Fuel pressure:

304 to 343 kPa (3.1 to 3.5 kgf*cm², 44.1 to 49.7 psi)

1. If the fuel pressure is greater than the standard value, replace the fuel pressure regulator.
   
2. If the fuel pressure is less than the standard value, check the fuel hoses and connections, fuel pump, fuel filter and fuel pressure regulator.
   

Disconnect the intelligent tester from the DLC3.

Start the engine.

Measure the fuel pressure at idle.

Fuel pressure:

304 to 343 kPa (3.1 to 3.5 kgf*cm², 44.1 to 49.7 psi)

Stop the engine.

Check that the fuel pressure remains as specified for 5 minutes after the engine stops.

Fuel pressure:

147 kPa (1.5 kgf*cm², 21 psi) or more

After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove SST to prevent gasoline from splashing.

Reconnect the fuel tube to the main fuel tube (RAV4_ACA30 RM000001IQW01CX.html).

Install the No. 1 fuel pipe clamp to the fuel tube connector.

Inspect for fuel leaks.