Nissan Terrano r20e. Instruction — part 159
Description
Vibration when stopping the engine can be controlled by cutting
intake air just before the fuel is cut. The intake air control valve
control solenoid valve controls the ON-OFF load of the intake air
control valve actuator. As a result, the intake air control valve con-
trol solenoid valve will be turned ON when the ignition switch is
turned OFF with the engine running and when the engine stalls.
After the engine has stopped, the intake air control valve control
solenoid valve will return to fully open.
Operation
Sensor
Input Signal to ECM
ECM
Function
Actuator
Ignition switch
OFF
Intake
air con-
trol
valve
control
Intake air control valve control solenoid
valve
"
Intake air control valve actuator
Crankshaft position sensor (TDC)
Engine stall
ECM Terminals and Reference Value
Specification data are reference values, and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may damage the
ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
2
LG
Intake air control valve
control solenoid valve
Engine is running.
BATTERY VOLTAGE
(11 - 14V)
Ignition switch “OFF”
For a few seconds after engine stops
Approximately 0.1V
MEC006E
INTAKE AIR CONTROL VALVE CONTROL SOLENOID
VALVE
ZD30DDTi
EC-273
Wiring Diagram
YEC200A
INTAKE AIR CONTROL VALVE CONTROL SOLENOID
VALVE
ZD30DDTi
EC-274
Diagnostic Procedure
1
CHECK OVERALL FUNCTION
1. Start engine and let it idle.
2. Make sure that intake air control valve actuator rod moves when turning ignition switch “OFF”.
MEC011E
OK or NG
OK
E
INSPECTION END
NG
E
GO TO 2.
2
CHECK VACUUM SOURCE
1. Turn ignition switch “OFF”.
2. Disconnect vacuum hose connected to intake air control valve actuator.
3. Start engine and let it idle.
4. Check vacuum hose for vacuum existence under the following conditions.
MEC012E
MTBL1328
OK or NG
OK
E
GO TO 3.
NG
E
GO TO 4.
INTAKE AIR CONTROL VALVE CONTROL SOLENOID
VALVE
ZD30DDTi
EC-275
3
CHECK INTAKE AIR CONTROL VALVE ACTUATOR
4. Turn ignition switch “OFF”.
5. Install a vacuum pump to intake air control valve actuator.
6. Make sure that the intake air control valve actuator rod moves smoothly when applying vacuum of −93.3 kPa (−933 mbar, −700
mmHg, −27.56 psi) and releasing it.
MEC013E
OK or NG
OK
E
Repair or replace vacuum hoses and vacuum gallery.
NG
E
Replace intake air control valve actuator.
4
CHECK VACUUM HOSE
3. Turn ignition switch “OFF”.
4. Check vacuum hoses and vacuum gallery for clogging, cracks or improper connection.
SEF109L
OK or NG
OK
E
GO TO 5.
NG
E
Repair or replace vacuum hoses and vacuum gallery.
INTAKE AIR CONTROL VALVE CONTROL SOLENOID
VALVE
ZD30DDTi
Diagnostic Procedure (Cont’d)
EC-276
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст