Toyota Tundra. Manual — part 1143

Control the ETCS
Open/Close Slow
Speed

Throttle actuator

Close/Open

Test possible when following
conditions met:



Ignition switch ON



Engine is stopped



Fully depressing accelerator
pedal (APP: 58 degrees or more)

Control the ETCS
Open/Close Fast
Speed

Throttle actuator

Close/Open

Control the VVT
Linear (Bank 1)

Control VVT (bank 1)

Between-128
and 127%



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible during idle.

Control the VVT
System (Bank 1)

Turn on and off OCV
(Oil Control Valve)

ON/OFF



Engine stalls or idles roughly
when OCV turned ON



Normal engine running or idling
when OCV OFF

Control the VVT
Linear (Bank 2)

Control VVT (bank 2)

Between -128
and 127%



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible during idle.

Control the VVT
System (Bank 2)

Turn on and off OCV
(Oil Control Valve)

ON/OFF



Engine stalls or idles roughly
when OCV turned ON



Normal engine running or idling
when OCV OFF

Activate the
Vacuum Pump

Leak detection pump ON/OFF

-

Activate the VSV
for Vent Value

Vent valve

ON/OFF

-

Control the
Cylinder #1 Fuel
Cut

Cylinder #1 injector
fuel cut

ON/OFF

Test possible while vehicle stopped and
engine idling*3

Control the
Cylinder #2 Fuel
Cut

Cylinder #2 injector
fuel cut

ON/OFF

Control the
Cylinder #3 Fuel
Cut

Cylinder #3 injector
fuel cut

ON/OFF

Control the
Cylinder #4 Fuel
Cut

Cylinder #4 injector
fuel cut

ON/OFF

Control the
Cylinder #5 Fuel
Cut

Cylinder #5 injector
fuel cut

ON/OFF

Control the
Cylinder #6 Fuel
Cut

Cylinder #6 injector
fuel cut

ON/OFF

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

In this Active Test, the fuel and ignition of all cylinders are cut, and cranking occurs for
approximately 10 seconds. Then, each cylinder measures the engine RPM. If a cylinder's engine
RPM is higher than the others, that cylinder's compression pressure is compared to the others, and it
is determined whether it is low or not.

1. Warm up the engine.

2. Turn the ignition switch OFF.

3. Connect the Techstream to the DLC3.

4. Turn the ignition switch ON and turn the Techstream ON.

5. Enter the following menus: Powertrain/Engine and ECT/Active Test/Check the Cylinder

Compression.

HINT:

If the results are not displayed normally, select the display items from the Data List before
performing the Active Test. Enter the following menus: Powertrain/Engine and ECT/Data
List/Compression/Engine Speed of Cyl #1, Engine Speed of Cyl #2, Engine Speed of Cyl #3,
Engine Speed of Cyl #4, Engine Speed of Cyl #5, Engine Speed of Cyl #6 and Av Engine
Speed of All Cyl.

6. While the engine is not running, press the RIGHT or LEFT button to change the Check the

Cylinder Compression to ON.

HINT:

After performing the above procedure, the Active Test's Check the Cylinder Compression
will start. Fuel injection for all cylinders is prohibited, and each cylinder's engine RPM
measurement will enter standby mode.

Control the All
Cylinder Fuel Cut

All cylinder fuel cut

ON/OFF

Check the Cylinder
Compression*4

Check the cylinder
compression pressure

ON/OFF

Fuel injection and ignition stop in all
cylinders

NOTE:



*3: If the display of the Data List's CAT OT MF F/C item is Not Avl, perform this Active
Test with the vehicle stopped and the engine idling.



*3: If the display of the Data List's CAT OT MF F/C item is Avail, perform this Active Test
as described below.

a. Stop the engine and turn the ignition switch ON to turn Control the Cylinder #1

Fuel Cut (to #6 Fuel Cut) ON.

b. Start the engine.

HINT:
*4: When cranking the engine, each cylinder measures the engine RPM.

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

7. Crank the engine for about 10 seconds.

8. Monitor the engine speed (Engine Speed of Cyl #1 to #6, Av Engine Speed of All Cyl)

displayed on the Techstream.

HINT:

At first, the Techstream's display will show each cylinder's engine RPM measurement to be
extremely high. After approximately 10 seconds of engine cranking, each cylinder's engine
RPM measurement will change to the actual engine RPM.

3. SYSTEM CHECK

HINT:

Performing a System Check in the Utility menu enables the system, which consists of multiple actuators,
to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and
can detect potential malfunctions in the system.

a. Connect Techstream to the DLC3.

b. Turn the ignition switch ON.

c. Turn the Techstream ON.

d. Enter the following menus: Powertrain/Engine and ECT/Utility.

e. Perform the System Check by referring to the table below.

SYSTEM CHECK CHART

NOTE:



After the Active Test's Check the Cylinder Compression is
turned ON, it will automatically turn off after 255 seconds.



When the Check the Cylinder Compression test is OFF and
the engine is cranked, the engine will start.



If the Check the Cylinder Compression test needs to be
performed after it is turned ON and performed once, press
EXIT to return to the Active Test menu screen. Then
perform the Check the Cylinder Compression test again.



Use a fully-charged battery.

Tester Display

Test Part

Control

Range

Diagnostic Note

Evaporative
System Check
(Automatic
Mode)

Perform 5 steps in
order to operate EVAP
key-off monitor
automatically

35°C (95°F)
or less



If no DTCs in Pending after
performing this test, system
functioning normally



Refer to EVAP SYSTEM

Evaporative
System Check

Perform 5 steps in
order to operate EVAP 35°C (95°F)



Used to detect malfunctioning parts

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

DIAGNOSTIC TROUBLE CODE CHART

HINT:

Factors such as instrument type may cause readings to differ slightly from stated values. If any DTCs are
displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below. For details
of each DTC, refer to the "See page" below.

*: The MIL flashes when a catalyst damaged misfire is detected.

SFI system

DIAGNOSTIC TROUBLE CODE CHART

(Manual Mode) key-off monitor

manually

or less



Refer to EVAP SYSTEM

Air Injection
Check
(Automatic
Mode)

Perform secondary air
injection system
operation
automatically

With warm
engine,
ignition
switch turned
OFF once



If no DTCs in Pending after
performing this test, system
functioning normally



Refer to inspection procedure for
secondary air injection system
DTCs



When performing Air Injection
Check operation after battery cable
has been reconnected, wait for 7
minutes with ignition switch turned
to ON or engine running



Turn ignition switch to OFF when
Air Injection Check finished

Air Injection
Check (Manual
Mode)

Perform 7 operations
in order to operate air
injection system
monitor manually

With warm
engine,
ignition
switch turned
OFF once



Used to detect malfunctioning parts



Refer to inspection procedure for
secondary air injection system
DTCs



When performing Air Injection
Check operation after battery cable
has been reconnected, wait for 7
minutes with ignition switch turned
to ON or engine running



Turn ignition switch to OFF when
Air Injection Check finishes

DTC Code

Detection Item

Trouble Areas

MIL

Memory

P0010

Camshaft Position "A"
Actuator Circuit (Bank
1)



Open or short in
OCV (bank 1)
circuit

Comes on

DTC Stored

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra