Nissan Qashqai (2007-2010). Manual — part 132
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MULTIPORT FUEL INJECTION SYSTEM
EC-47
< FUNCTION DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
C
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Component Description
INFOID:0000000001056136
1.
ASCD steering switch
2.
CANSEL switch
3.
RESUME/ACCELERATE switch
4.
SET/COAST switch
5.
MAIN switch
JMBIA0349ZZ
Component
Reference
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Fuel injector
Heated oxygen sensor 1
Heated oxygen sensor 2
Intake air temperature sensor
Knock sensor
Mass air flow sensor
Park/neutral position (PNP) switch
Throttle position sensor
Vehicle speed sensor
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EC-48
< FUNCTION DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
ELECTRIC IGNITION SYSTEM
ELECTRIC IGNITION SYSTEM
System Diagram
INFOID:0000000001056137
System Description
INFOID:0000000001056138
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
Firing order: 1 - 3 - 4 - 2
The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition signals are transmitted to the power transistor.
During the following conditions, the ignition timing is revised by the ECM according to the other data stored in
the ECM.
• At starting
• During warm-up
• At idle
• At low battery voltage
• During acceleration
The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed
within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not
JMBIA0174GB
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed*
2
Piston position
Ignition timing
control
Ignition coil (with power transis-
tor)
Camshaft position sensor (PHASE)
Mass air flow sensor
Amount of intake air
Engine coolant temperature sensor
Engine coolant temperature
Throttle position sensor
Throttle position
Accelerator pedal position sensor
Accelerator pedal position
Battery
Battery voltage*
2
Knock sensor
Engine knocking
Park/neutral position (PNP) switch
Gear position
Combination meter*
1
Vehicle speed
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ELECTRIC IGNITION SYSTEM
EC-49
< FUNCTION DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.
The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.
Component Parts Location
INFOID:0000000001060010
1.
Ignition coil (with power transistor)
and spark plug
2.
Refrigerant pressure sensor
3.
Intake valve timing control solenoid
valve
4.
Knock sensor,
Crankshaft position sensor (POS)
5.
Fuel injector
6.
Camshaft position sensor (PHASE)
7.
Cooling fan motor
8.
IPDM E/R
9.
ECM
10. Mass air flow sensor (with intake
temperature sensor)
11.
Engine coolant temperature sensor
12. Electric throttle control actuator
(with built in throttle position sensor
and throttle control motor)
13. EVAP canister purge volume control
solenoid valve
JMBIA0399ZZ
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EC-50
< FUNCTION DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
ELECTRIC IGNITION SYSTEM
1.
Mass air flow sensor
2.
Engine coolant temperature sensor
Vehicle front
1.
Electric throttle control actuator
2.
Camshaft position sensor (PHASE)
Vehicle front
1.
Ignition coil (with power transistor)
and spark plug
2.
Fuel injector
3
EVAP canister purge volume control
solenoid valve
Vehicle front
1.
ECM harness connector
2.
IPDM E/R
Vehicle front
JMBIA0400ZZ
JMBIA0401ZZ
JMBIA0402ZZ
JMBIA0403ZZ
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