2001 NISSAN ALMERA TINO Service Repair Manual

oil pressure ground clearance interior lights fuel tank removal technical data fuel fill door release

Page 1505 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Normal ControlNLEC0612S04Input/Output Signal ChartNLEC0612S0401
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (TDC) Engine speedFuel injection
control (Normal
control)Ele

Normal ControlNLEC0612S04Input/Output Signal ChartNLEC0612S0401
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor (TDC) Engine speedFuel injection
control (Normal
control)Electronic control fuel
injection pump
Accelerator position sensor Accelerator position
SEF649S
The amount of fuel injected under normal driving conditions is determined according to sensor signals. The
crankshaft position sensor (TDC) detects engine speed and the accelerator position sensor detects accelera-
tor position. These sensors send signals to the ECM.
The fuel injection data, predetermined by correlation between various engine speeds and accelerator positions,
are stored in the ECM memory, forming a map. The ECM determines the optimal amount of fuel to be injected
using the sensor signals in comparison with the map.
Maximum Amount ControlNLEC0612S05Input/Output Signal ChartNLEC0612S0501
Sensor Input Signal to ECM ECM Function Actuator
Mass air flow sensor Amount of intake air
Fuel injection
control (Maxi-
mum amount
control)Electronic control fuel
injection pump Engine coolnat temperature sensor Engine coolant temperature
Crankshaft position sensor (TDC) Engine speed
Accelerator position sensor Accelerator position
The maximum injection amount is controlled to an optimum by the engine speed, intake air amount, engine
coolant temperature, and accelerator opening in accordance with the driving conditions.
This prevents the oversupply of the injection amount caused by decreased air density at a high altitude or
during a system failure.
Deceleration ControlNLEC0612S06Input/Output Signal ChartNLEC0612S0601
Sensor Input Signal to ECM ECM Function Actuator
Accelerator position switch Accelerator positionFuel injection
control (Decel-
eration control)Electronic control fuel
injection pump
Crankshaft position sensor (TDC) Engine speed
The ECM sends a fuel cut signal to the electronic control fuel injection pump during deceleration for better
fuel efficiency. The ECM determines the time of deceleration according to signals from the accelerator posi-
tion switch and crankshaft position sensor (TDC).
Fuel Injection Timing Control System
DESCRIPTIONNLEC0613The target fuel injection timing in accordance with the engine speed and the fuel injection amount are recorded
as a map in the ECM beforehand. The ECM and the injection pump control unit exchange signals and per-
form feedback control for optimum injection timing in accordance with the map.
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTION
YD22DDTI
Fuel Injection Control System (Cont'd)
EC-1080

Page 1506 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Air Conditioning Cut Control
DESCRIPTIONNLEC0614Input/Output Signal ChartNLEC0614S01
Sensor Input Signal to ECM ECM Function Actuator
Air conditioner switch Air conditioner ªONº signal
Air condition

Page 1507 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual SEF440ZA
Crankcase Ventilation System
DESCRIPTIONNLEC0616In this system, blow-by gas is sucked into the air duct after oil
separation by oil separator in the rocker cover.
SEC692
INSPECTIONNLEC0617Ven

Page 1508 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Injection Tube and Injection Nozzle
REMOVAL AND INSTALLATIONNLEC0618CAUTION:
+Do not disassemble injection nozzle assembly. If NG,
replace injection nozzle assembly.
+Plug flare nut with a cap or rag

Page 1509 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual JEF341Y
InstallationNLEC0618S01021. Referring to the figure and the marking which were made for
installation, connect the injection tubes to all the cylinders.
2. Connect temporarily the tubes to the

Page 1510 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual JEF344Y
Spill TubeNLEC0618S03RemovalNLEC0618S0301Loosen and remove the mounting bolts and flare nuts in the
reverse order of the numbers in the figure.
+When the flare nuts are loosened, hold the head

Page 1511 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual JEF346Y
Inspection for Spill Tube AirtightnessNLEC0619S01Before the rocker cover is installed, perform the inspection as fol-
lows.
1. Connect the handy vacuum pump to the spill hose.
2. Check that th

Page 1512 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual SEF434Z
Spray Pattern TestNLEC0619S051. Check spray pattern by pumping tester handle one full stroke
per second.
NG spray pattern:
Does not inject straight and strong (B in the figure).
Fuel drips (C

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dimensions refuelling immobilizer AUX oil type air filter