Transcript LAND CRUISER (Engine [3UR-FE])

Model Outline
for Technician
Engine Overall
3UR-FE Engine
Chassis
Body
Body Electrical
-A
3UR-FE Engine
– V8 (90-degree), 5.7-liter, 32-valve, DOHC engine
w/Dual VVT-i, ETCS-i, ACIS and AI system
Basic construction
and operation is
same as 3UR-FE on
2007 TUNDRA
1
Model Outline
for Technician
Engine Overall
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Features
2
MRE Type
Delivery Pipe
Separator
VVT
with Pulsation
Case for Dual
VVT-i
Sensor Damper Function
PCV
4 Timing
Chains
4 Flat Type
Knock
Sensors
Element
Spiny
Replacement Liner
Type Oil Filter
Engine Coolant
Distribution
Pathway
Water
Jacket
Spacer
Long-reach
Type Spark
Plug
Hydraulic
Lash
Adjuster
Vacuum
Actuator
Type ACIS
Model Outline
for Technician
Engine Overall
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Specifications
Model
2008 LAND CRUISER
2007 TUNDRA
Engine
3UR-FE
3UR-FE
8-Cylinder, V type

32-Valve DOHC Chain
Drive, Dual VVT-i

Pentroof Type

5663 (345.6)

94.0 X 102.0
(3.70 X 4.02)

10.2 : 1

1-8-7-3-6-5-4-2

Max. Output
kW @ rpm (HP @ rpm)
284 @ 5600
(381 @ 5600)

Max. Torque
N·m @ rpm (ftlbf @ rpm)
544 @ 3600
(401 @ 3600)

No. of Cylinders and
Arrangement
Valve Mechanism
Combustion Chamber
Displacement
Bore x stroke
cm3 (cu. in.)
mm (in.)
Compression Ratio
Firing Order
3
Model Outline
for Technician
Engine Overall
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Major Difference from 3UR-FE on 2007 TUNDRA
4
Model
2008 LAND CRUISER
2007 TUNDRA
Engine
3UR-FE
3UR-FE
Engine Oil Level Sensor
Only for Canada and
Mexico
N.A.
Main Muffler
With 2-way Exhaust
Control System
N.A.
Model Outline
for Technician
Reference
3UR-FE Engine
Chassis
(Engine Overall)
Body
Body Electrical
-A
Comparison with 1UR-FSE on LS460
– Specifications
Model
2008 LAND CRUISER
2007 LS460
Engine
3UR-FE
1UR-FSE
8-Cylinder, V type

32-Valve DOHC Chain Drive,
Dual VVT-i
32-Valve DOHC Chain Drive,
Dual VVT-i [VVT-iE]
Pentroof Type

5663 (345.6)
4608 (281.2)
94.0 X 102.0
(3.70 X 4.02)
94.0 x 83.0
(3.70 x 3.27)
10.2 : 1
11.8 : 1
1-8-7-3-6-5-4-2

Max. Output
kW @ rpm (HP @ rpm)
284 @ 5600
(381 @ 5600)
283 @ 6400
(380 @ 6400)
Max. Torque
N·m @ rpm (ftlbf @ rpm)
544 @ 3600
(401 @ 3600)
498 @ 4100
( 367 @ 4100)
No. of Cylinders and
Arrangement
Valve Mechanism
Combustion Chamber
Displacement
Bore x stroke
cm3 (cu. in.)
mm (in.)
Compression Ratio
Firing Order
5
Model Outline
for Technician
Reference
3UR-FE Engine
Chassis
(Engine Overall)
Body
Body Electrical
-A
Comparison with 1UR-FSE on LS460
– Major Difference
Model
2008 LAND CRUISER
2007 LS460
Engine
3UR-FE
1UR-FSE
Aluminum
Without balance piece
Magnesium
With balance piece
Conventional Type
Composite Camshaft
Dual VVT-i
(IN & EX: Hydraulic)
Dual VVT-i
(IN: VVT-iE / EX: Hydraulic)
Port Injection
D-4S (Direct and Port)
Return Type
Pressure regulator is install at
delivery pipe
Return-less Type
Pressure regulator is install
at fuel pump
Fuel Pump ECU
(3-step)
Resister
(2-step)
Single Ground Electrode
1 air flow meter
Triple Ground Electrode
2 air flow meters
Operated by vacuum actuator
Operated by DC motor
With (2-pump type)
Fan Coupling
Without
PWM Control
Dash panel penetration
installation
In the ECU box
Cylinder Head Cover
Crankshaft Pulley
Camshaft
VVT-i
Fuel System
Port Injection
Fuel Pump Control (In
tank pump)
Spark Plug
Air Flow Meter
ACIS
Air Injection System
Cooling Fan
ECM
6
Model Outline
for Technician
Valve Mechanism
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Timing Chain
– To ensure highly accurate valve timing, separate
primary timing chains are used
Primary
Chain (RH)
Chain Tensioner
(for Secondary)
Secondary
Chain (LH)
Secondary
Chain (RH)
Chain Tensioners
(for Primary)
Primary
Chain (LH)
7
Chain Tensioner
(for Secondary)
Model Outline
for Technician
Valve Mechanism
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Dual VVT-i
– Hydraulic type VVT-i is used for intake and exhaust
valve
Hydraulic VVT-i
for Intake
Hydraulic VVT-i
for Exhaust
8
Model Outline
for Technician
3UR-FE Engine
Lubrication System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Oil Cooler
– Laminated aluminum core oil cooler is used for
compact, lightweight and high radiation performance
: Oil Flow
: Coolant Flow
Oil Filter Bracket
Spacer
Oil Filter
Cap
9
Laminated Type
Oil Cooler
Model Outline
for Technician
Cooling System
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Engine Coolant Distribution Pathway Same as 2007 TUNDRA
– Cylinder head and cylinder block is cooled by coolant
from the engine coolant distribution pathway
Engine Coolant
Distribution
Pathway
10
Model Outline
for Technician
3UR-FE Engine
Intake and Exhaust System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Exhaust Manifold
– Air injection pipe is provided for the air injection
system
Air Injection Pipe
Exhaust Manifold (RH)
11
Model Outline
for Technician
3UR-FE Engine
Intake and Exhaust System
Chassis
Body
Body Electrical
-A
Main Muffler
– 2-way exhaust control system is used to decrease the
back pressure
Control Valve
Low Engine Speed
(Valve Closed)
Reduce noise
12
High Engine Speed
(Valve Opened)
Decrease back pressure
Model Outline
for Technician
Fuel System
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Delivery Pipe
– Pulsation damper function is integrated in the delivery
pipe
Pulsation damper function
Delivery Pipe
Inner
Pipe
Fuel
13
Model Outline
for Technician
Fuel System
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Injector
– The injector wire harnesses are combined into a single
connector at each bank for improved serviceability
Injector Wire
Harness
(RH Bank)
Injector Wire
Harness
(LH Bank)
14
Model Outline
PCV
for Technician
3UR-FE Engine
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Separator Case
– Oil separator mechanism is included to the separator
case and cylinder head cover becomes compact
: Fresh Air
: Blowby Gas
PCV Valve
Oil
Mist
Blowby Gas
Oil
Oil Separator Mechanism
Separator
Case
15
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Knock Sensor
– 4 knock sensors are installed at inside of V-bank
knock Sensor
Front
16
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– The air injection system to quicken the warming-up
the TWC during the cold start-up
Air Injection
Control Valves
Air
Filters
Electric Air
Pumps
TWC
17
Model Outline
for Technician
3UR-FE Engine
Chassis
Engine Control System
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– System Diagram
•Engine Coolant Temperature Sensor
•Mass Air Flow Meter
•Intake Air Temperature Sensor
ECM
Air Injection
Control Driver
Air Injection
Control Driver
Air Pressure
Sensor
Air Switching
Valve
18
For Bank 1
Air Pressure
Sensor
Electric Air
Pump
Electric Air
Pump
Air Switching
Valve
For Bank 2
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Air Injection System
– Location
Air Injection Control
Valve (Bank 2)
Chassis
Body
-A
Same as 2007 TUNDRA
Air Injection Control
Valve (Bank 1)
•Air Switching Valve
•Air Pressure Sensor
•Air Switching Valve
•Air Pressure Sensor
Electric Air
Pump
(Bank 2)
19
Body Electrical
Electric Air
Pump
(Bank 1)
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Air Injection System
– Location
Air Injection Control
Driver (Bank 1)
Air Injection Control
Driver (Bank 2)
20
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– Electric air pump supplies air into the air injection
control valve
Air Filter
(Maintenance Free)
Impeller
Electric Air
Pump (Bank 1)
Electric Air
Pump (Bank 2)
21
DC Motor
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– Air injection control valve consists of an air switching
valve that switches the air to exhaust port ON/OFF
Air Injection Control Valve
For Bank 2
For Bank 1
Air Pressure
Sensor
Air
Switching
Valve
Reed
Valve
22
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– Air injection control driver actuates electric air pump
and air switching valve
AIRP
Electric Air Pump
Actuation Request
SIP
AIRV
Air Switching Valve
Actuation Request
SIV
AIDI
Failure Status (Duty)
Air Injection Control
Driver (Bank 1)
DI
ECM
23
ARP2
SIP2
ARV2
SIV2
AID2
DI2
Air Injection
Control
Driver
(Bank2)
Air Switching
Valve (Bank 1)
Electric Air
Pump
(Bank 1)
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Air Injection System
– Air injection control driver transmits failure status to
ECM via duty cycle signal from DI terminal
Conditions
Duty Ratio (Duty Signal)
A
Normal
+B
GND
80%
20%
+B
B GND
Open circuit in between AIDI and DI
terminal

Failure in line between ECM and air
injection driver terminals
A GND
Failure Failure in electric air pump actuation
Status circuit
Failure in air injection control valve
circuit
Overheat failure of air injection
driver
24
0%
+B
GND
100%
+B

+B
GND

+B
GND

+B
GND
0%
20%
A: Electric air pump and air injection control valve are actuating
B: Conditions other than A
40%
60%
Model Outline
for Technician
Reference
3UR-FE Engine
Chassis
(Engine Control System)
Air Injection System
– DTCs for air injection system (1/2)
DTC
25
Body
Body Electrical
-A
Same as 2007 TUNDRA
Trouble area
P0412
Secondary Air Injection System Air Switching Value “A” Circuit
P0415
Secondary Air Injection System Air Switching Valve "B" Circuit
P0418
Secondary Air Injection System Control "A" Circuit
P0419
Secondary Air Injection System Control "B" Circuit
P1613
Air Injection System Air Injection Driver Bank 1
P1614
Air Injection System Air Injection Driver Bank 2
P2431
Secondary Air Injection System Air Flow/Pressure Sensor Circuit
Range/Performance Bank 1
P2432
Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 1
P2433
Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1
P2436
Secondary Air Injection System Air Flow/Pressure Sensor Circuit
Range/Performance Bank 2
P2437
Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank 2
P2438
Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 2
Model Outline
for Technician
Reference
3UR-FE Engine
Chassis
(Engine Control System)
Air Injection System
– DTCs for air injection system (2/2)
DTC
26
Body
Body Electrical
-A
Same as 2007 TUNDRA
Trouble area
P2440
Secondary Air Injection System Switching Value Stuck Open Bank 1
P2441
Secondary Air Injection System Switching Value Stuck Closed Bank 1
P2442
Secondary Air Injection System Switching Value Stuck Open Bank 2
P2443
Secondary Air Injection System Switching Value Stuck Closed Bank 2
P2444
Secondary Air Injection System Pump Stuck On Bank 1
P2445
Secondary Air Injection System Pump Stuck Off Bank 1
P2446
Secondary Air Injection System Pump Stuck On Bank 2
P2447
Secondary Air Injection System Pump Stuck Off Bank 2
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
Same as 2007 TUNDRA
Fuel Pump Control
– Fuel pump ECU controls the fuel pump speed in 3 steps
Fr
Fuel Pump ECU
27
Model Outline
for Technician
3UR-FE Engine
Chassis
Engine Control System
Body
Body Electrical
-A
Same as 2007 TUNDRA
Fuel Pump Control
+B
0V
Hi:
Mid:
Lo:
12 msec
OFF:
Engine Speed
Injection Volume
FPC
ECM
DI
Fuel Pump
Operation Signal
Diagnosis
Signal
Normal: 10V
Abnormal: 0V
28
FP+
FPC
DI
Fuel
Fuel
Pump ECU Pump
FP-
M
Model Outline
for Technician
3UR-FE Engine
Engine Control System
Chassis
Body
Body Electrical
-A
ECM
– Dash panel penetration installation
Same as 2007 TUNDRA
Body
ECM
ECM
Gasket
(Non-reusable Part)
29