Fuel system

Precaution

1. 1
   Before working on fuel system
2. 2
   Do not work near an open flame.
3. 3
   Keep gasoline away from rubber and leather parts.
4. 4
   Discharge the fuel pressure before disconnecting the fuel line to prevent gasoline from spilling out.
5. 5
   Discharge fuel pressure

Refer to the following procedure. Caution:

• Discharge fuel system pressure procedures must be performed before disconnecting any part of the fuel system.
• After performing the discharge fuel system pressure procedures, pressure will remain in the fuel line. When disconnecting the fuel line, place a cloth or equivalent over fittings to reduce the risk of fuel spray.

1. 1
   Remove the console box (see page ir-83).
2. 2
   Disconnect the connector.
3. 3
   Start the engine. After the engine has stopped, turn the ignition switch off.

Hint:

Dtc p0171 (system too lean) may be set.

1. 1
   Check that the engine does not start.
2. 2
   Remove the fuel tank cap, and let the air out of the fuel tank.
3. 3
   Connect the connector.
4. 4
   Install the console box (see page ir-90).
5. 5
   Disconnect fuel main tube

   

Notice:

Do not forcibly bend and twist the fuel main tube.

1. 1
   Remove the fuel tube from the fuel hose clamp.
2. 2
   Remove the fuel pipe clamp.
3. 3
   Wipe off dirt on the fuel tube connector.
4. 4
   Hold the fuel tube connector, and then install sst.

Sst 09268-21010

1. 1
   Turn sst to align the retainer inside the fuel tube connector with the chamfered part of sst.
2. 2
   Insert sst into the fuel tube and hold it. Then push the fuel tube connector toward sst side.
3. 3
   Mount the retainer of the fuel tube connector onto the chamfered part of sst.
4. 4
   Slide sst and fuel tube connector together towards the fuel tube until they make a click sound, and then disconnect the fuel tube.
5. 5
   Drain the fuel remaining inside the fuel tube.
6. 6
   Cover the fuel tube and fuel pipe with a plastic bag to protect the disconnected part.

   

1. 1
   Connect fuel main tube
2. 2
   Connect the fuel main tube.
3. 3
   Push the fuel tube connector until it makes a "click" sound.
4. 4
   Install the fuel pipe clamp.
5. 5
   Install the fuel tube to the fuel hose clamp.
6. 6
   Disconnect fuel tube connector

   

1. 1
   Wipe off any dirt on the fuel tube connector.
2. 2
   Pinch the fuel tube connector, and then disconnect the fuel tube. Do not use any tools.
3. 3
   Drain the fuel remaining inside the fuel tube.
4. 4
   Cover the fuel tube and fuel pipe with a plastic bag to protect the disconnected part.
5. 5
   Connect fuel tube connector
6. 6
   Connect the fuel tube connector to the fuel pipe.
7. 7
   Push the fuel connector until it makes a click sound.

Hint:

If it is difficult to connect the fuel tube connector, apply a small amount of new engine oil on the tip of the pipe.

7. Check for fuel leaks

1. 1
   Make sure that there are no fuel leaks after performing maintenance on the fuel system.
2. 2
   Connect the intelligent tester to the dlc3.
3. 3
   Turn the ignition switch on, and push the intelligent tester main switch on.

Notice:

Do not start the engine.

3. Select the active test mode on the intelligent tester.

Hint:

Refer to the intelligent tester operator's manual for further details.

1. 1
   Check that there are no leaks from the fuel system.
2. 2
   Turn the ignition switch off.
3. 3
   Disconnect the intelligent tester from the dlc3.

Parts location

System diagram

On-vehicle inspection

1. Check fuel pump operation

1. 1
   Connect the intelligent tester to the dlc3.
2. 2
   Turn the ignition switch on. Do not start the engine.
3. 3
   Select the following tester menus: diagnosis, enhanced obd ii, active test and fuel pump/spd. Operate the fuel pump.
4. 4
   Touch the fuel hose in the engine compartment to check the fuel flow, and you will be able to hear the sound of the fuel pump.
5. 5
   Stop the fuel pump.
6. 6
   Check fuel pressure

   

If there is no fuel flow, the fuel pump may not operate. Check the fuel pump circuit (see page fu- 33).

1. 1
   Check that the battery positive voltage is above 12 v.
2. 2
   Discharge the fuel system pressure (see page fu- 9).
3. 3
   Disconnect the cable from the negative (-) battery terminal.
4. 4
   Disconnect the fuel main tube (see page fu-10).
5. 5
   Install sst (pressure gauge) as shown in the illustration.

Sst 09268-31011 (95336-08070, 90467-13001, 09268-41500), 09268-45014 (09268-41200, 09268-41220, 09268-41250)

1. 1
   Wipe off any gasoline.
2. 2
   Reconnect the cable to the negative (-) battery terminal.
3. 3
   Start the engine.
4. 4
   Measure the fuel pressure at idle.

Fuel pressure: 304 to 343 kpa (3.1 To 3.5 Kgf/cm2, 44 to 50 psi)

1. 1
   If the pressure is not as specified, check the fuel pump and injectors.
2. 2
   After checking the fuel pressure, disconnect the cable from the negative (-) battery terminal and carefully remove sst and the fuel tube connector to prevent fuel from spilling.
3. 3
   Reconnect the fuel main tube (see page fu-14).
4. 4
   Check for fuel leaks (see page fu-14).