Nissan Sentra Service Manual: Intake manifold runner control
INTAKE MANIFOLD RUNNER CONTROL : System Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
Intake manifold runner control valve has a valve portion in the intake passage of each cylinder.
While idling and during low engine coolant temperature, the intake manifold runner control valve closes. Thus the velocity of the air in the intake passage increases, promoting the vaporization of the fuel and producing a intake manifold runner in the combustion chamber.
Because of this operation, this system tends to increase the burning speed of the gas mixture, improve exhaust emission, and increase the stability in running conditions.
Also, except when idling and during low engine coolant temperature, this system opens the intake manifold runner control valve.
In this condition, this system tends to increase power by improving intake efficiency via reduction of intake flow resistance.
The intake manifold runner control valve is operated by the ECM.
Exhaust valve timing control
EXHAUST VALVE TIMING CONTROL : System
Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor ...
Intake manifold tuning system
INTAKE MANIFOLD TUNING SYSTEM : System
Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
This system switches the length of intake air path according to the
low-to-medium speed range or high spe ...
Other materials:
Evap leak check
Inspection
CAUTION:
Do not use compressed air or a high pressure pump.
Do not exceed 4.12 kPa (0.042 kg/cm2, 0.6 psi) of pressure in EVAP
system.
NOTE:
Do not start engine.
Improper installation of EVAP service port adapter [commercial
service tool: (J-41413-OBD)] to the EVAP
...
Using the system
The NISSAN Voice Recognition system allows
hands-free operation of the Bluetooth® Phone
System.
If the vehicle is in motion, some commands may
not be available so full attention may be given to
vehicle operation.
Initialization
When the ignition switch is placed in the ON
position, NISSAN ...
Engine block heater (if so equipped)
Engine block heaters are used to assist with cold
temperature starting.
The engine block heater should be used when
the outside temperature is 20°F (-7°C) or lower.
WARNING
Do not use your engine block heater
with an ungrounded electrical system or
a 2-pronged adapter. You ...
