Hyundai Kona: Evaporative Emission Control System / Repair procedures

Hyundai Kona (OS) 2018-2023 Service Manual / Emission Control System / Evaporative Emission Control System / Repair procedures

Inspection

[System Inspection]

Disconnect the vapor hose from the intake manifold and connect a vacuum pump to the nipple on the intake manifold.

–	At Cold Engine [Engine Coolant Temperature < 60°C (140°F)]

Engin Operating Condition	Applied Vacuum	Result
Idle	Min. 20 inHg (Min. 0.7 kgf/cm², Min. 67.7 kPa)	Vacuum is held
3,000 rpm	Min. 20 inHg (Min. 0.7 kgf/cm², Min. 67.7 kPa)	Vacuum is held

Check the following points with applied vacuum at the purge control solenoid valve (PCSV).

–	At Warmed Engine [Engine Coolant Temperature > 80°C (176°F)]

Engin Operating Condition	Applied Vacuum	Result
Idle	Min. 20 inHg (Min. 0.7 kgf/cm², Min. 67.7 kPa)	Vacuum is held
Within 3 minutes after engine start at 3,000 rpm	Try to apply Vacuum	Vacuum is released
In 3 minutes after engine start at 3,000 rpm	Min. 20 inHg (Min. 0.7 kgf/cm², Min. 67.7 kPa)	Vacuum will be held momentarily, after which, it will be released

[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.

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

Measure the coil resistance of the PCSV.

Specifications :

22.0 - 26.0Ω [20°C (68°F)]

[EVAP. Leakage Test]

1.	Select "Evap. Leakage Test".

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

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 i ...

Canister Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Lift the vehicle. 3. Dis ...

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