Nissan Altima HL32 Hybrid. Manual — part 263
![](/vehicles/gon/sttello/nita/lor.png)
EC-36
< FUNCTION DIAGNOSIS >
[QR25DE]
MULTIPORT FUEL INJECTION SYSTEM
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Fuel injector
Heated oxygen sensor 2
Intake air temperature sensor
Knock sensor
Mass air flow sensor
Throttle position sensor
Vehicle speed sensor
Component
Reference
![](/vehicles/gon/sttello/nita/reein.png)
ELECTRIC IGNITION SYSTEM
EC-37
< FUNCTION DIAGNOSIS >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
ELECTRIC IGNITION SYSTEM
System Diagram
INFOID:0000000004211326
System Description
INFOID:0000000004211327
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
SYSTEM DESCRIPTION
Firing order: 1 - 3 - 4 - 2
JMBIA0458GB
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed
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
Battery
Battery voltage
Knock sensor
Engine knocking
Brake ECU
Vehicle speed*
Hybrid vehicle control ECU
Vehicle speed*
Accelerator pedal position*
Shift position*
Engine operation command*
(Engine start request, Engine idle
request, Fuel cut request, Engine
power request, Engine speed re-
quest, etc.)
![](/vehicles/gon/sttello/nita/lutwerea.png)
EC-38
< FUNCTION DIAGNOSIS >
[QR25DE]
ELECTRIC IGNITION SYSTEM
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
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:0000000004362519
ALBIA0138ZZ
![](/vehicles/gon/sttello/nita/agongt.png)
ELECTRIC IGNITION SYSTEM
EC-39
< FUNCTION DIAGNOSIS >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
Intake valve timing control solenoid
valve
2.
Ignition coil (with power transistor)
and spark plug
3.
Knock sensor,
Crankshaft position sensor (POS)
4.
Air fuel ratio (A/F) sensor 1
5.
Camshaft position sensor (PHASE)
6.
Engine coolant temperature sensor
7.
ECM
8.
Refrigerant pressure sensor
9.
IPDM E/R
10. Mass air flow sensor (with intake
temperature sensor)
11. EVAP service port
12. Electric throttle control actuator (with
built in throttle position sensor and
throttle control motor)
13. EVAP canister purge volume control
solenoid valve
14. Fuel injector
1.
Throttle valve
2.
Electric throttle control actuator
3.
Electric throttle control actuator har-
ness connector
4.
EVAP service port
5.
EVAP canister purge volume control
solenoid valve
6.
Intake manifold collector
7.
ECM
8.
Intake valve timing control solenoid
valve
: Vehicle front
ALBIA0160ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст