Toyota Tundra. Manual — part 1983

2

Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3

SST 09843-18040

NOTE:



Confirm the terminal numbers before connecting them. Connectin

wrong terminals can damage the engine.



Switch off all accessories and the A/C before connecting the termi

Fig. 2: Identifying DLC3 Connector Terminals

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

3

Using the timing light, check the ignition timing

Standard ignition timing: 8 to 12° BTDC @ idle (transmission in neutral and A/C
switch OFF)

Fig. 3: Checking Ignition Timing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4

Remove SST from the DLC3

5

Check the ignition timing

Standard ignition timing: 7 to 24° BTDC @ idle (transmission in neutral and A/C
switch OFF)

6

Disconnect the timing light from the engine

2

INSPECT ENGINE IDLE SPEED

a

Warm up and stop the engine

1

Allow the engine to warm up to a normal operating temperature

b

When using the Techstream:

1

Connect the Techstream to the DLC3

2

Race the engine at 2500 RPM for approximately 90 seconds

3

Push the Techstream main switch ON

4

Enter the following menus: Powertrain/Engine and ECT/Data List/Primary/Engine Speed

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Switch off all accessories and the A/C before connecting the
Techstream.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

Standard idle speed: 650 to 750 RPM (transmission in neutral and A/C switch OFF)

HINT:

Refer to the Techstream operator's manual for further details

If the idle speed is not as specified, check the air intake system

5

Disconnect the Techstream from the DLC3

c

When not using the Techstream:

1

Using SST, connect the tachometer probe to terminal 9 (TAC) of the DLC3

SST 09843-18030

2

Race the engine at 2500 RPM for approximately 90 seconds

3

Check the idle speed

Standard idle speed: 650 to 750 RPM (transmission in neutral and A/C switch OFF)

If the idle speed is not as specified, check the air intake system

4

Disconnect the tachometer probe from the DLC3

3

INSPECT COMPRESSION

a

Warm up and stop the engine

1

Allow the engine to warm up to a normal operating temperature

b

Remove the V-bank cover

NOTE:



Confirm the terminal number before connecting the probe.
Connecting the probe to the wrong terminal can damage
the engine.



Switch off all accessories and the A/C before connecting
the probe.

Fig. 4: Identifying DLC3 Connector Terminal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra

c

Remove the air cleaner hose assembly

d

Remove the air cleaner cap

e

Disconnect the 2 injector connectors and 8 ignition coil connectors

Fig. 5: Locating Injector Connectors And Ignition Coil Connectors
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

f

Remove the 8 bolts and 8 ignition coils

g

Remove the 8 spark plugs

h

Check the cylinder compression pressure

Fig. 6: Checking Cylinder Compression Pressure
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

1

Insert a compression gauge into the spark plug hole

2

Fully open the throttle

3

While cranking the engine, measure the compression pressure

NOTE:

Check each cylinder's compression pressure in the same way.

2009 Toyota Tundra

2009 ENGINE Engine Mechanical (3UR-FE) - Tundra