2006 TOYOTA RAV4 injector

ENGINE - 2AZ-FE ENGINE
00REG17Y
Accelerator Pedal
Position SensorThrottle Valve
Throttle Position SensorThrottle
Control
Motor
Mass Air
Flow MeterECMSkid
Control
ECU
Ignition
CoilFuel
Injector
: CANEG-43
6. ETCS-i (Electronic Throttle Control System-intelligent)
General
The ETCS-i is used, providing excellent throttle control in all the operating ranges. In the 2AZ-FE
engine, the accelerator cable has been discontinued, and an accelerator pedal position sensor has been
provided on the accelerator pedal.
In the conventional throttle body, the throttle valve opening is determined by the amount of the
accelerator pedal effort. In contrast, the ETCS-i uses the ECM to calculate the optimal throttle valve
opening that is appropriate for the respective driving condition and uses a throttle control motor to control
the opening.
The ETCS-i controls the IAC (Idle Air Control) system, the TRAC (Traction Control), VSC (Vehicle
Stability Control) system and curise control system.
In case of an abnormal condition, this system switches to the limp mode.
System Diagram

ENGINE - 2AZ-FE ENGINE
199EG47
Injectors
ECMIgnition Coils
Accelerator Pedal
Position Sensor
Main
Sub
Main
Sub
Return to
Prescribed Angle
Throttle ValveReturn
SpringThrottle
Control
Motor
Accelerator Pedal Throttle BodyEG-47
Fail-safe of Throttle Position Sensor
The throttle position sensor is comprised of two (main, sub) sensor circuits. If a malfunction occurs in
either one or both of the sensor circuits, the ECM detects the abnormal signal voltage difference between
these two sensor circuits, cuts off the current to the throttle control motor, and switches to the limp mode.
Then, the force of the return spring causes the throttle valve to return and stay at the prescribed opening
angle. At this time, the vehicle can be driven in the limp mode while the engine output is regulated
through the control of the fuel injection (intermittent fuel-cut) and ignition timing in accordance with the
accelerator opening.
The same control as above is effected if the ECM detects a malfunction in the throttle control motor
system.

ENGINE - 2GR-FE ENGINEEG-71
FEATURES OF 2GR-FE ENGINE
The 2GR-FE engine has achieved the following performance through the use of the items listed below.
(1) High performance and reliability
(2) Low noise and vibration
(3) Lightweight and compact design
(4) Good serviceability
(5) Clean emission and fuel economy
Item
(1)(2)(3)(4)(5)
A steel laminate type cylinder head gasket is used.
An upright intake port is used.
EngineA taper squish shape is used for combustion chamber.Engine
ProperA cylinder block made of aluminum alloy is used.Proper
The skirt portion of the piston is applied with resin to
reduce friction.
An oil pan No. 1 made of aluminum alloy is used.
The Dual VVT-i (Variable Valve Timing-intelligent)
system is used.
Va l v e
Mh i
Hydraulic lash adjusters are used.
MechanismTiming chains and chain tensioners are used.
Roller rocker arms are used.
Lubrication
SystemAn oil filter with a replaceable element is used.
Cooling SystemThe TOYOTA Genuine SLLC (Super Long Life Coolant)Cooling SystemThe TOYOTA Genuine SLLC (Super Long Life Coolant)
is used for the engine coolant.
The linkless-type throttle body is used.
Intake andThe intake air chamber made of plastic is used.Intake and
Exhaust
S
A stainless steel exhaust manifold is used.
SystemAn ultra thin-wall, high-cell density ceramic type TWC
(Three-Way Catalytic converter) is used.
The fuel delivery pipe made of plastic is used.
Fuel SystemA compact 12-hole type injector is used.Fuel SystemQuick connectors are used to connect the fuel hose with
the fuel pipe.
Ignition System
The DIS (Direct Ignition System) makes ignition timing
adjustment unnecessary.
Ignition System
The long-reach type spark plugs are used.
(Continued)

ENGINE - 2GR-FE ENGINE
01MEG17Y
Injector
Quick Connector
Pulsation Damper
Fuel Pump Assembly
Fuel Filter
Pressure Regulator
Fuel Tank
Canister
Injector Fuel Delivery Pipe EG-94
FUEL SYSTEM
1. General
The fuel returnless system is used to reduce evaporative emissions.
A fuel cut control is used to stop the fuel pump when the SRS airbag is deployed in a frontal or side
collision. For details, see page EG-53.
The fuel delivery pipe made of plastic is used.
A quick connector is used to connect the fuel pipe with the fuel hose for excellent serviceability.
Compact 12-hole type injectors are used to increase atomization of the fuel.
A compact fuel pump in which a fuel filter is integrated in the fuel pump assembly is used.
The ORVR (On-board Refueling Vapor Recovery) system is used. For details, see page EG-131.

ENGINE - 2GR-FE ENGINE
01MEG07Y
SENSORSACTUATORS
MASS AIR FLOW METER
INTAKE AIR TEMPERATURE
SENSOR
CRANKSHAFT POSITION
SENSOR
ENGINE COOLANT
TEMPERATURE SENSOR
ACCELERATOR PEDAL
POSITION SENSOR
THROTTLE POSITION
SENSOR
KNOCK SENSOR (Bank 1)
KNOCK SENSOR (Bank 2)
INTAKE VVT SENSOR (Bank 1)
INTAKE VVT SENSOR (Bank 2)
EXHAUST VVT SENSOR
(Bank 1)
EXHAUST VVT SENSOR
(Bank 2)
IGNITION SWITCHVG
THA
NE
THW
VPA
VPA2
VTA1
VTA2
KNK1
KNK2
VV1
VV2
EV1
EV2
IGSWECM#10
#20
#30
#40
#50
#60
IGT1 -
IGT6
IGF1
M
OC1
OC2
OE1
OE2SFI
NO. 1 INJECTOR
NO. 2 INJECTOR
NO. 3 INJECTOR
NO. 4 INJECTOR
NO. 5 INJECTOR
NO. 6 INJECTOR
ESA
IGNITION COIL with
IGNITER
SPARK PLUG
ETCS-i
THROTTLE CONTROL
MOTOR
VVT-i (INTAKE SIDE)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 1)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 2)
VVT-i (EXHAUST SIDE)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 1)
CAMSHAFT TIMING OIL
CONTROL VALVE (Bank 2)EG-103
2. Construction
The configuration of the engine control system is as shown in the following chart.
(Continued)

ENGINE - 2GR-FE ENGINE
01MEG29Y
Ignition SwitchCombination Meter
Vehicle Speed Signal
MIL
Battery Current Sensor
(Built-in Battery
Temperature Sensor)
Park / Neutral
Position Switch
Battery
Generator
Fuel Pump Relay
Fuel Pump
Vent Valve
Circuit Opening
RelayDLC3*1*2*3
CAN
ECM
Cruise Control Switch
Accelerator Pedal
Position Sensor
Stop Light Switch
Canister
Pressure
SensorLeak
Detection
Pump
Intake Air
Temp. Sensor
VSV (For
Air Intake
Control)Mass Air
Flow Meter
AirThrottle Position
Sensor
Purge VSV
Throttle
Control
Motor
*4*5
Fan
Motor No. 1Fan
Motor
No. 2
Cooling
Fan
ECUCooling
Fan
ECU
No. 1Cooling
Fan
ECU
No. 2
Fan Motor No. 1
Fan Motor No. 2
ACIS Actuator
Intake Camshaft Timing
Oil Control Valve (Bank 2)Injector Injector
Intake Camshaft Timing
Oil Control Valve (Bank 1)
Intake VVT Sensor (Bank 1)
Ignition Coil With Igniter
Exhaust VVT Sensor (Bank 1)
Exhaust Camshaft Timing
Oil Control Valve (Bank 1)
Air-fuel Ratio Sensor
(Bank1, Sensor1)
TWC
Knock
Sensor
Intake VVT
Sensor (Bank 2)
Exhaust VVT
Sensor (Bank 2)
Air-fuel Ratio Sensor
(Bank2, Sensor1)Exhaust Camshaft
Timing Oil Control
Valve (Bank 2)
Crankshaft Position
Sensor
Engine Coolant
Temperature Sensor Heated Oxygen Sensor
(Bank1, Sensor2)Heated Oxygen Sensor
(Bank2, Sensor2)TWCTWC
EG-106
3. Engine Control System Diagram
*1: Air Conditioning ECU
*
2: Airbag Sensor Assembly
*
3: Skid Control ECU
*
4: Except Towing Package Models
*
5: Towing Package Models

ENGINE - 2GR-FE ENGINE
01MEG27Y
01MEG28Y
Intake Camshaft Timing Oil Control Valve (Bank 2)
Ignition Coil with Igniter
Injector
Intake VVT Sensor
(Bank 2)
Exhaust Camshaft
Timing Oil Control
Valve (Bank 2)
Crankshaft
Position Sensor
Exhaust VVT Sensor
(Bank 2)Air-fuel Ratio
Sensor
(Bank 2, Sensor 1)Engine Coolant
Temperature SensorIntake Camshaft Timing Oil Control
Valve (Bank 1)
Intake VVT
Sensor (Bank 1)
Exhaust VVT Sensor
(Bank 1)
Exhaust Camshaft
Timing Oil Control
Valve (Bank 1)
Air-fuel Ratio Sensor
(Bank 1, Sensor 1)
ACIS ActuatorThrottle Position Sensor
Knock Sensor (Bank 1)
Knock Sensor (Bank 2) EG-108

ENGINE - 2GR-FE ENGINEEG-109
5. Main Components of Engine Control System
General
The main components of the 2GR-FE engine control system are as follows:
Component
OutlineQuantity
ECM32-bit CPU1
Mass Air Flow MeterHot-wire Type1
Crankshaft Position Sensor (Rotor Teeth)Pick-up Coil Type (36 - 2)1
Intake VVT Sensor (Rotor Teeth)MRE (Magnetic Resistance Element)
Ty p e ( 3 )2
Exhaust VVT Sensor (Rotor Teeth)MRE (Magnetic Resistance Element)
Ty p e ( 3 )2
Accelerator Pedal Position SensorNon-contact Type1
Throttle Position SensorNon-contact Type1
Knock SensorBuilt-in Piezoelectric Type
(Non-resonant Type / Flat Type)2
Air fuel Ratio Sensor(Bank 1, Sensor 1)Type with Heater (Planar Type)1 eachAir-fuel Ratio Sensor(Bank 2, Sensor 1)Type with Heater (Planar Type)1 each
Heated Oxygen (Bank 1, Sensor 2)Type with Heater (Cup Type)1 eachHeated Oxygen
Sensor
(Bank 2, Sensor 2)Type with Heater (Cup Type)1 each
Injector12-hole Type6