2006 TOYOTA RAV4 sensor

ENGINE - 2GR-FE ENGINE
285EG79
279EG50
Engine
Front
Timing RotorCrankshaft
Position Sensor
Timing Rotor (720
CA)
10
CA
2 Teeth
Missing EG-110
Mass Air Flow Meter
The 2GR-FE engine uses the same mass air flow meter as the 2AZ-FE engine. For details, see page EG-38.
Crankshaft Position Sensor
The timing rotor of the crankshaft consists of 34 teeth, with 2 teeth missing. The crankshaft position sensor
outputs the crankshaft rotation signals every 10
, and the missing teeth are used to determine the
top-dead-center.

ENGINE - 2GR-FE ENGINE
285EG82285EG83
Intake VVT Sensor (Bank 1)
Timing Rotor
RH BankTiming RotorExhaust VVT Sensor (Bank 1)
RH Bank
285EG84
VVT Sensor Signal Plate (720 CA)
VVT
Sensor
0 V
Crankshaft
Position
Sensor
0 V180
CA 60 CA
60 CA180 CA 120 CA120
CA
360
CA 360 CA
10
CAE G - 111
Intake and Exhaust VVT Sensors
1) General
The MRE (Magnetic Resistance Element) type intake and exhaust VVT sensors are used. To detect the
camshaft position, a timing rotor that is secured to the camshaft in front of the VVT controller is used
to generate 6 (3 Hi Output, 3 Lo Output) pulses for every 2 revolutions of the crankshaft.
Sensor Output Waveforms

ENGINE - 2GR-FE ENGINE
271EG160
Timing Rotor
Intake VVT
Sensor
VC
VV1+
VV1 -ECM
Intake VVT Sensor (Bank 1) EG-112
2) MRE Type VVT Sensor
The MRE type VVT sensor consists of an MRE, a magnet and a sensor. The direction of the magnetic
field changes due to the different shapes (protruded and non-protruded portions) of the timing rotor,
which passes by the sensor. As a result, the resistance of the MRE changes, and the output voltage to
the ECM changes to Hi or Lo. The ECM detects the camshaft position based on this output voltage.
The differences between the MRE type VVT sensor and the pick-up coil type VVT sensor used on
the conventional models are as follows.
ItemSensor TypeItemMREPick-up Coil
Signal OutputConstant digital output starts from
low engine speeds.Analog output changes with the
engine speed.
Camshaft Position
Detection
Detection is made by comparing
the NE signals with the Hi / Lo
output switch timing due to the
protruded / non-protruded portions
of the timing rotor, or made based
on the number of the input NE
signals during Hi / Lo outputs.
Detection is made by comparing
the NE signals with the change of
waveform that is output when the
protruded portion of the timing
rotor passes.
Wiring Diagram

ENGINE - 2GR-FE ENGINE
232CH41
Engine
Speed
Sensor
OutputDigital
OutputEngine
Speed
Sensor
OutputNo Detecting
Analog Output
MRE Type Pick-up Coil TypeEG-113
Comparison between MRE Type and Pick-up Coil Type Output Waveform Images
Accelerator Pedal Position Sensor
The 2GR-FE engine uses the same accelerator pedal position sensor as the 2AZ-FE engine. For details, see
page EG-42.

ENGINE - 2GR-FE ENGINE
01MEG37Y
Throttle Body
Throttle Position
Sensor Portion
Magnetic Yoke
Hall IC
(For Throttle Position Sensor)
Magnetic Yoke A
Cross SectionView from A EG-114
Throttle Position Sensor
The non-contact type throttle position sensor uses a Hall IC, which is mounted on the throttle body.
The Hall IC is surrounded by a magnetic yoke. The Hall IC converts the changes that occur in the
magnetic flux at that time into electrical signals and outputs them in the form of a throttle valve effort
to the ECM.
The Hall IC contains circuits for the main and sub signals. It converts the throttle valve opening angles
into electric signals with two differing characteristics and outputs them to the ECM.

ENGINE - 2GR-FE ENGINE
230LX12238EG79
Throttle Position Sensor
Magnetic Yoke
Hall
IC
Hall
IC
Magnetic YokeVTA1
E
VC
VTA2ECMOutput
Voltage(V)
5
0
Fully CloseVTA2
VTA1
90(C)
Fully Open
Throttle Valve Opening Angle
Service Tip
The inspection method differs from the conventional contact type throttle position sensor because
this non-contact type sensor uses a hall IC. For details, refer to the 2006 RAV4 Repair Manual (Pub.
No. RM01M1U).
EG-115

ENGINE - 2GR-FE ENGINE
Service Tip
These knock sensors are mounted in the specific directions and angles as illustrated. To prevent the
right and left bank connectors from being interchanged, make sure to install each sensor in its
prescribed direction.
285EG55
Knock Sensor (Bank 1)
Engine
Front
Knock Sensor (Bank 2) EG-116
Knock Sensor (Flat Type)
The 2GR-FE engine uses the same knock sensor as the 2AZ-FE engine. For details, see page EG-39.

ENGINE - 2GR-FE ENGINE
238EG70
Synchronous Injection
IgnitionNon-synchronous Injection
Crankshaft Angle # 1
# 2
# 3
# 4
# 5
# 6
0
120240360480600720
Independent InjectionEG-117
Air-fuel Ratio Sensor and Heated Oxygen Sensor
The planar type air-fuel ratio sensor and the cup type heated oxygen sensor are used. For details, see page
EG-37.
6. SFI (Sequential Multiport Fuel Injection) System
An L-type SFI system directly detects the intake air mass with a hot wire type mass air flow meter.
An independent injection system (in which fuel is injected once into each cylinder for each two revolution
of the crankshaft) is used.
There are two (synchronous and non-synchronous) injections:
a) The synchronous injection in which corrections based on the signals from the sensors are added to the
basic injection time so that injection occurs always at the same position.
b) The non-synchronous injection in which injection is effected by detecting the requests from the signals
of the sensors regardless of the crankshaft angle.
Furthermore, to protect the engine and achieve lower fuel consumption, the system uses a fuel cutoff in
which the injection of fuel is stopped temporarily in accordance with the driving conditions.
This system performs group injection when the engine coolant temperature is extremely low and the
engine is operating at a low speed.
7. ESA (Electronic Spark Advance) System
This system selects the optimal ignition timing in accordance with the signals received from the sensors and
sends the (IGT) ignition signal to the igniter.