Hyundai Elantra: Evaporative Emission Control System / Repair procedures

Inspection
[EVAP. Leakage Test]
1.
Select "Evap. Leakage Test".

2.
Proceed with the test according to the screen introductions.

[PCSV Inspection]
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Disconnect the PCSV connector (A).
3.
Disconnect the vapor hose (B) which is connected to the intake manifold from the PCSV.

4.
After connecting a vacuum pump to the nipple, apply vacuum.
5.
With the PCSV control line grounded, check the valve operation with battery voltage applied to the PCSV(Open) and removed (Closed).
Battery Voltage
Valve
Vacuum
Connected
Open
Released
Disconnected
Close
Maintained

6.
Measure the coil resistance of the PCSV.

Specifications :
22.0 ~ 26.0 ? [20°C(68°F)]

Schematic Diagrams
Schematic Diagram Canister The Canister is filled with charcoal and absorbs evaporated fuel vapor from the fuel tank. The gathered fuel vapor in canister is drawn into the intake manifold by t ...

Canister Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Lift the vehicle. 3. Disconnect the ventilation hose (A), and canister close valve extension co ...

Other information:

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Hyundai Elantra AD (2016-2020) Service Manual: Heated Oxygen Sensor (HO2S) Description and Operation
Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Catalytic Converter. It varies in accordance with the air/fuel ratio. The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater ...

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