Nissan Qashqai (2007-2010). Manual — part 294

EVAPORATIVE EMISSION SYSTEM

EC-695

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

PBIB2942E

1.

Heated oxygen sensor 1 harness
connector

2.

Heated oxygen sensor 1

3.

Heated oxygen sensor 2

4.

Heated oxygen sensor 2 harness
connector

1.

PCV valve

2.

Ignition coil (with power transistor)
and spark plug

3.

Fuel injection

BBIA0757E

JMBIA0344ZZ

JMBIA0345ZZ

EC-696

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

EVAPORATIVE EMISSION SYSTEM

1.

Refrigerant pressure sensor

2.

Resister

3.

Cooling fan motor

1.

Intake valve timing control solenoid
valve

2.

Knock sensor

1.

Crankshaft position sensor (POS)

2.

Ground

1.

ASCD clutch switch

2.

Data link connector

JMBIA0445ZZ

JMBIA0446ZZ

JMBIA0347ZZ

JMBIA0348ZZ

EVAPORATIVE EMISSION SYSTEM

EC-697

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Description

INFOID:0000000000936632

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

1.

ASDC steering switch

2.

CANSEL switch

3.

RESUME/ACCCELERATE switch

4.

SET/COAST switch

5.

MAIN SWITCH

6.

1.

Fuel level sensor unit and fuel pump
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

JMBIA0349ZZ

JMBIA0346ZZ

Component

Reference

Accelerator pedal position sensor

EC-909, "Description"

Camshaft position sensor (PHASE)

EC-813, "Description"

Crankshaft position sensor (POS)

EC-809, "Description"

Engine coolant temperature sensor

EC-754, "Description"

EVAP canister purge volume control solenoid valve

EC-822, "Description"

Heated oxygen sensor 1

EC-760, "Description"

Mass air flow sensor

EC-746, "Description"

Throttle position sensor

EC-757, "Description"

Vehicle speed sensor

EC-825, "Description"

EC-698

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

INTAKE VALVE TIMING CONTROL

INTAKE VALVE TIMING CONTROL

System Diagram

INFOID:0000000000936633

System Description

INFOID:0000000000936634

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM through CAN communication line

SYSTEM DESCRIPTION

This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-
noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake
valve to increase engine torque in low/mid speed range and output in high-speed range.

Component Parts Location

INFOID:0000000001093568

PBIB3333E

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed and piston position

Intake valve
timing control

Intake valve timing control
solenoid valve

Camshaft position sensor (PHASE)

Engine coolant temperature sensor

Engine coolant temperature

Wheel sensor*

Vehicle speed