Kia Niro: Emission control system / 2. Evaporative emission control system
The Evaporative Emission Control System is designed to prevent fuel vapors from escaping into the atmosphere.
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the onboard canister. When the engine is running, the fuel vapors absorbed in the canister are drawn into the surge tank through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is controlled by the Engine Control Module (ECM); when the engine coolant temperature is low during idling, the PCSV closes so that evaporated fuel is not taken into the engine. After the engine warms up during ordinary driving, the PCSV opens to introduce evaporated fuel to the engine.
1. Crankcase emission control system
The positive crankcase ventilation system is employed to prevent air pollution
caused by blow-by gases being emitted from the crankcase. This system supplies fresh
filtered air to the crankcase th ...
3. Exhaust emission control system
The Exhaust Emission Control System is a highly effective system which controls
exhaust emissions while maintaining good vehicle performance.
Vehicle modifications
This vehicle should not be modif ...
Other information:
Kia Niro 2017 (DE HEV) Service Manual: Power Relay Assembly (PRA) Repair procedures
Removal
•
Be sure to read and follow the “General Safety Information and
Caution” before doing any work related with the high voltage system.
Failure to follow the safety instr ...
Kia Niro 2017 (DE HEV) Service Manual: Virtual Engine Sound System Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box housing.
(Refer to Body - "Glove Box Housing")
3.
Disconnect the VESS unit connector (A).
4.
...
