System Diagram; Function Of Main Components - Toyota 1NZ-FE User Manual

System Diagram

To Intake Manifold
Purge VSV
Purge Air
Line
Fresh Air Line
ECM

Function of Main Components

Component
Canister
Refueling Refueling
Valve
Restrictor
Passage
Fresh Air Line
Vent Valve
C i t Canister
Leak Detection
Pump
Pump
Module Module
Canister
Pressure Sensor
Purge VSV
Canister Filter
ECM
ENGINE - 1NZ-FE ENGINE
Fuel Tank
Canister Filter
Contains activated charcoal to absorb the vapor gas that is created in
the fuel tank.
Controls the flow rate of the vapor gas from the fuel tank to the canister
when the system is purging or during refueling.
Prevents a large amount of vacuum during purge operation or system
monitoring operation from affecting the pressure in the fuel tank.
Fresh air goes into the canister and the cleaned drain air goes out into
the atmosphere.
Opens and closes the fresh air line in accordance with the signals from
the ECM.
Applies vacuum pressure to the evaporative emission system in
accordance with the signals from the ECM.
Detects the pressure in the evaporative emission system and sends the
signals to the ECM.
Opens in accordance with the signals from the ECM when the system
is purging, in order to send the vapor gas that was absorbed by the
canister into the intake manifold. In system monitoring mode, this
valve controls the introduction of the vacuum into the fuel tank.
Prevents dust and debris in the fresh air from entering the system.
Controls the canister pump module and purge VSV in accordance with
the signals from various sensors, in order to achieve a purge volume
that suits the driving conditions. In addition, the ECM monitors the
system for any leakage and outputs a DTC if a malfunction is found.
Refueling Valve
Canister Pump Module
Vent
Valve
M
Leak Detection
Pump & Pump
Motor
P
Canister
Pressure Sensor
Function
EG-47
Canister
00REG22Y