Nissan Sentra Service Manual: 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 service port may cause a leak.
1.EVAP LEAK CHECK
With CONSULT
- Install EVAP service port adapter [commercial service tool: (J- 41413-OBD)] and pressure pump to EVAP service port.
- Turn ignition switch ON.
- Select the “EVAP SYSTEM CLOSE” in “WORK SUPPORT” mode of “ENGINE” using CONSULT.
- Touch “START”. A bar graph (Pressure indicating display) will appear on the screen.
- Apply positive pressure to the EVAP system until the pressure indicator reaches the middle of the bar graph.
- Remove EVAP service port adapter [commercial service tool: (J-41413-OBD)] and hose with pressure pump.
- Locate the leak using a leak detector [commercial service tool: (J-41416)]. Refer to EC-49, "EVAPORATIVE EMISSION SYSTEM : System Description".
Without CONSULT
- Install EVAP service port adapter [commercial service tool: (J- 41413-OBD)] and pressure pump to EVAP service port.
- Apply battery voltage between the terminals of EVAP canister vent control valve to make a closed EVAP system.
- To locate the leak, deliver positive pressure to the EVAP system until pressure gauge points reach 1.38 to 2.76 kPa (0.014 to 0.028 kg/cm2, 0.2 to 0.4 psi).
- Remove EVAP service port adapter [commercial service tool: (J-41413-OBD)] and hose with pressure pump.
- Locate the leak using a leak detector [commercial service tool: (J-41416)]. Refer to EC-49, "EVAPORATIVE EMISSION SYSTEM : System Description".
>> INSPECTION END
Evaporative emission system
Inspection
EVAP CANISTER
1.CHECK EVAP CANISTER
Block port (B).
Blow air into port (A) and check that it flows freely out of port (C).
Release blocked port (B).
Apply vacuum pressure to por ...
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 fel ...
Other materials:
Parking brake
WARNING
Be sure the parking brake is fully released
before driving. Failure to do so
can cause brake failure and lead to an
accident.
Do not release the parking brake from
outside the vehicle.
Do not use the shift lever in place of the
parking brake. When parki ...
Drive belt
Automatic tensioner
Generator
Water pump
Air conditioner compressor
Crankshaft pully
WARNINGBe sure the ignition switch is in the OFF
or
LOCK position before servicing drive belt.
The engine could rotate unexpectedly.
Visually inspect the belt for signs of ...
Ignition switch (if so equipped)
WARNING
Never remove or turn the key to the
LOCK position while driving. The steering
wheel will lock (for models with a
steering lock mechanism). This may
cause the driver to lose control of the
vehicle and could result in serious vehicle
damage or personal injury ...
