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:
Brake piping
FRONT
FRONT : Exploded View
Brake tube
ABS actuator and electric unit (control
unit)
Connector
Connector bracket
Master cylinder assembly
Brake booster
Lock plate
Brake hose
Copper sealing washer
To front brake hose
To rear brake pipe
Front
FRONT : Hydraulic P ...
Rear window defogger feedback signal
Description
Turns the indicator lamp in the rear window defogger switch ON when operating
the rear window defogger.
Component function check
1.Check rear window defogger feedback signal
Check that the indicator lamp of rear window defogger switch is illuminated
when turning the rear window
...
Ipdm-e branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the IPDM E/R for damage, bend and
loose connection (unit side
and connector side).
Is the inspection result normal?
Yes ...
