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:
Cleaning interior
This vehicle has new and unique surfaces on the
center console and door pull finishers. If cleaning
is required use mild soap and water. However if
mild soap and water won’t clean the center console
and door pull finishers, use NISSAN Vinyl
and Leather Cleaner (or equivalent).
Occasionally ...
Door mirror remote control switch
Removal and Installation
Removal
Remove the instrument finisher D. Refer to IP-14, "Exploded View".
Using suitable tool (a) release the pawls and remove the door mirror
remote control switch (2) from the
switch bracket (1).
Pawl
Installation
Installation is in the rev ...
Mixture ratio self-learning value
clear
Description
This describes how to erase the mixture ratio self-learning value. For the
actual procedure, follow the instructions
in “Diagnosis Procedure”.
Work Procedure
1.START
With CONSULT
Start engine and warm it up to normal operating temperature.
Select “SELF-LEARNI ...