Toyota Tundra. Manual — part 1705

2009 Toyota Tundra

2009 ENG NE Emission Control (1GR-FE) - Tundra

Fig. 6: Emission Control - Secondary Air Injection System Wiring Diagram (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

EVAP CONTROL SYSTEM DIAGRAM

Fig. 7: Emission Control - EVAP Control System Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

EVAP SYSTEM WIRING DIAGRAM

2009 Toyota Tundra

2009 ENG NE Emission Control (1GR-FE) - Tundra

Fig. 8: Emission Control - EVAP System Wiring Diagram
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

ON-VEHICLE INSPECTION

1

INSPECT FUEL CUT-OFF RPM

a

Start and warm up the engine

b

Increase the engine speed to at least 3500 rpm

c

Use a sound scope to check for injector operation noise

d

Check that when the accelerator pedal is released, injector operation noise stops momentarily and

2009 Toyota Tundra

2009 ENG NE Emission Control (1GR-FE) - Tundra

then resumes

If the result is not specified, check the injector, wiring and ECM

2

VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS

a

Check that there are no cracks, leaks or damage

If the result is not as specified, replace parts as necessary

Fig. 9: Inspecting Hoses, Connections And Gaskets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3

INSPECT FUEL CUT OFF VALVE AND FILL CHECK VALVE

a

Disconnect the vent line hose from the fuel tank

b

Connect the pressure gauge to the fuel tank

c

Fill the fuel tank with fuel enough

d

Apply pressure of 4 kPa (0 04 kgf/cm

2

, 0 58 psi) to the vent port of the fuel tank

HINT:

It is necessary to check the amount of fuel in the fuel tank When the fuel tank is full, the float
valve of the fill check valve is closed and no air can pass through

NOTE:



Detachment or other problems with the engine oil dipstick, filler
cap, ventilation hose and other components may cause the
engine to run improperly.



Air suction caused by disconnections, looseness or cracks in
the parts of the air induction system between the throttle body
and cylinder head will cause engine failure or engine
malfunctions.

2009 Toyota Tundra

2009 ENG NE Emission Control (1GR-FE) - Tundra