2003 NISSAN TEANA Service Manual

deactivate passenger airbag brake pads maintenance schedule night vision oil trunk release

Page 1305 of 3502

NISSAN TEANA 2003 Service Manual ENGINE CONTROL SYSTEM
EC-23
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EC

FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during

ENGINE CONTROL SYSTEM
EC-23
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EC

FUEL INJECTION TIMING
Two types of systems are used.
Sequential Multiport Fuel Injection System
Fuel is injected into each cylinder during each engine cycle according to the firing order. This system is used
when the engine is running.
Simultaneous Multiport Fuel Injection System
Fuel is injected simultaneously into all four cylinders twice each engine cycle. In other words, pulse signals of
the same width are simultaneously transmitted from the ECM.
The four fuel injectors will then receive the signals two times for each engine cycle.
This system is used when the engine is being started and/or if the fail-safe system (CPU) is operating.
FUEL SHUT-OFF
Fuel to each cylinder is cut off during deceleration or operation of the engine at excessively high speeds.
Electronic Ignition (EI) SystemBBS005BG
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 signal. Comput-
ing 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
SEF337W
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
2
Piston position
Ignition timing
controlPower transistor 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
Knock sensor Engine knocking
Park/neutral position (PNP) switch Gear position
Battery
Battery voltage*
2
Wheel sensor
Vehicle speed*1

Page 1306 of 3502

NISSAN TEANA 2003 Service Manual EC-24
[QR]
ENGINE CONTROL SYSTEM

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 u

Page 1307 of 3502

NISSAN TEANA 2003 Service Manual AIR CONDITIONING CUT CONTROL
EC-25
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EC

AIR CONDITIONING CUT CONTROLPFP:23710
Input/Output Signal ChartBBS005BI
*1: This signal is sent to the ECM through CAN communication

Page 1308 of 3502

NISSAN TEANA 2003 Service Manual EC-26
[QR]
CAN COMMUNICATION

CAN COMMUNICATIONPFP:23710
System DescriptionBBS005BJ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
ti

Page 1309 of 3502

NISSAN TEANA 2003 Service Manual EVAPORATIVE EMISSION SYSTEM
EC-27
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EC

EVAPORATIVE EMISSION SYSTEMPFP:14950
DescriptionBBS005BK
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydroca

Page 1310 of 3502

NISSAN TEANA 2003 Service Manual EC-28
[QR]
EVAPORATIVE EMISSION SYSTEM

EVAPORATIVE EMISSION LINE DRAWING
PBIB2153E

Page 1311 of 3502

NISSAN TEANA 2003 Service Manual EVAPORATIVE EMISSION SYSTEM
EC-29
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EC

Component InspectionBBS005BL
EVAP CANISTER
Check EVAP canister as follows:
1. Block port B .
2. Blow air into port A and check that

Page 1312 of 3502

NISSAN TEANA 2003 Service Manual EC-30
[QR]
POSITIVE CRANKCASE VENTILATION

POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionBBS005BM
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcas

Load next 8 pages

Page: < prev 1-10 ... 1273-1280 1281-1288 1289-1296 1297-1304 1305-1312 1313-1320 1321-1328 1329-1336 1337-1344 ... 3504 next >

navigation update oil level fuse box location oil type night vision child restraint