2001 NISSAN ALMERA TINO Service Repair Manual

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Page 1497 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual SEF747Z
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD22DDTI
Engine Control Component Parts Location (Contd)
EC-1072

Page 1498 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual NEF323A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD22DDTI
Engine Control Component Parts Location (Contd)
EC-1073

Page 1499 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Circuit DiagramNLEC0608MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0608S03
YEC720
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD22DDTI
Circuit Diagram
EC-1074

Page 1500 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual MODELS WITH ECM IN CABINNLEC0608S04
YEC856
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD22DDTI
Circuit Diagram (Contd)
EC-1075

Page 1501 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual System DiagramNLEC0609
NEF324A
ENGINE AND EMISSION CONTROL OVERALL SYSTEMYD22DDTI
System Diagram
EC-1076

Page 1502 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Vacuum Hose DrawingNLEC1264
SEF742Z
1. Vacuum pump to vacuum gallery
2. Intake air duct to vacuum gallery3. Swirl control valve actuator to
vacuum gallery4. Swirl control valve control solenoid
valve

Page 1503 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual System ChartNLEC0611
Input (Sensor) ECM Function Output (Actuator)
+Electronic control fuel injection pump
+Crankshaft position sensor (TDC)
+Engine coolant temperature sensor
+Accelerator position se

Page 1504 of 3051

NISSAN ALMERA TINO 2001 Service Repair Manual Fuel Injection Control System
DESCRIPTIONNLEC0612System DescriptionNLEC0612S01Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle contro

Fuel Injection Control System
DESCRIPTIONNLEC0612System DescriptionNLEC0612S01Three types of fuel injection control are provided to accommodate engine operating conditions; normal control,
idle control and start control. The ECM determines the appropriate fuel injection control. Under each control,
the amount of fuel injected is compensated to improve engine performance.
Pulse signals are exchanged between ECM and electronic control fuel injection pump (control unit is built-in).
The fuel injection pump control unit performs duty control on the spill valve (built into the fuel injection pump)
according to the input signals to compensate the amount of fuel injected to the preset value.
Start ControlNLEC0612S02Input/Output Signal ChartNLEC0612S0201
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (start
control)Electronic control fuel
injection pump Crankshaft position sensor (TDC) Engine speed
Ignition switch Start signal
SEF648S
When the ECM receives a start signal from the ignition switch, the ECM adapts the fuel injection system for
the start control. The amount of fuel injected at engine starting is a preset program value in the ECM. The
program is determined by the engine speed and engine coolant temperature.
For better startability under cool engine conditions, the lower the coolant temperature becomes, the greater
the amount of fuel injected. The ECM ends the start control when the engine speed reaches the specific value,
and shifts the control to the normal or idle control.
Idle ControlNLEC0612S03Input/Output Signal ChartNLEC0612S0301
Sensor Input Signal to ECM ECM Function Actuator
Engine coolant temperature sensor Engine coolant temperature
Fuel injection
control (Idle con-
trol)Electronic control fuel
injection pump Crankshaft position sensor (TDC) Engine speed
Battery Battery voltage
Accelerator position switch Idle position
Vehicle speed sensor Vehicle speed
Air conditioner switch Air conditioner signal
When the ECM determines that the engine speed is at idle, the fuel injection system is adapted for the idle
control. The ECM regulates the amount of fuel injected corresponding to changes in load applied to the engine
to keep engine speed constant. The ECM also provides the system with a fast idle control in response to the
engine coolant temperature signal.
ENGINE AND EMISSION BASIC CONTROL SYSTEM
DESCRIPTION
YD22DDTI
Fuel Injection Control System
EC-1079

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