Nissan Versa (N17): Evaporative emission system
EVAPORATIVE EMISSION SYSTEM : System Diagram
EVAPORATIVE EMISSION SYSTEM : System Description
INPUT/OUTPUT SIGNAL CHART
| Sensor | Input signal to ECM | ECM function | Actuator |
| Crankshaft position sensor (POS) Camshaft position sensor (PHASE) | Engine speed*1 Piston position | EVAP canister purge flow control | EVAP canister purge volume control solenoid valve |
| Mass air flow sensor | Amount of intake air | ||
| Engine coolant temperature sensor | Engine coolant temperature | ||
| Air fuel ratio (A/F) sensor 1 | Density of oxygen in exhaust gas (Mixture ratio feedback signal) | ||
| Throttle position sensor | Throttle position | ||
| Accelerator pedal position sensor | Accelerator pedal position | ||
| Battery | Battery voltage*1 | ||
| Fuel tank temperature sensor | Fuel temperature in fuel tank | ||
| EVAP control system pressure sensor | Pressure in purge line | ||
| Combination meter | Vehicle speed*2 |
*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM through CAN communication line.
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is proportionally regulated as the air flow increases.
EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating.
Cooling fan control
Cooling fan control : system diagram Cooling fan control : system description INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator Crankshaft po ...
Intake valve timing control
Intake valve timing control : System Diagram Intake valve timing control : system description INPUT/OUTPUT SIGNAL CHART Sensor Input signal to ECM ECM function Actuator ...
Other materials:
Transmitter
Exploded View
1. Transmitter (tire pressure sensor) 2. O-ring 3. Valve stem nut
4. Valve core 5. Valve cap 6. Valve stem assembly
: Parts that are replaced as a set
when the tire is replaced.
Removal and Installation
REMOVAL
Remove road wheel and tire assembly using power tool. Refe ...
Remote keyless entry function
REMOTE KEYLESS ENTRY FUNCTION : System
Description
SYSTEM DIAGRAM
REMOTE KEYLESS ENTRY OPERATION
The Intelligent Key has the same functions as the remote control entry
system. Therefore, it can be used in the
same manner as the remote controller by operating the door lock/unlock button.
...
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