Nissan Sentra Service Manual: Positive crankcase ventilation
Inspection
1.CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong vacuum should be felt immediately when a finger is placed over valve inlet.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace PCV valve. Refer to EC-15, "ENGINE CONTROL SYSTEM : Component Parts Location".
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 ...
Removal and installation
Ecm
Exploded View
ECM bracket
ECM
Engine mounting insulator bracket
Removal and Installation
CAUTION:
Perform ADDITIONAL SERVICE WHEN REPLACING ECM. Refer to EC-135, "Work
Pro ...
Other materials:
General Precautions
Do not operate the
engine for an extended period of time without proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any inflammable
or poisonous materials, such as gasoline, refrigerant gas,
etc. Wh ...
Audio operation precautions
Compact disc (CD) player
CAUTION
Do not force a compact disc into the CD
insert slot. This could damage the CD
and/or CD player.
Trying to load a CD with the CD door
closed could damage the CD and/or CD
player.
Only one CD can be loaded into the CD
player at a time.
Only ...
P0078 EVT Control solenoid valve
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0078
EX V/T ACT/CIRC-B1
(Exhaust valve control solenoid circuit
bank 1)
An improper voltage is sent to the ECM
through exhaust v ...
