Hyundai Veloster Manuals

Hyundai Veloster: Repair procedures - Evaporative Emission Control System - Emission Control SystemHyundai Veloster: Repair procedures

Inspection

[System Inspection]

1.
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)]
Engine
Operating
Condition
Applied
Vacuum
Result
Idle
Min. 20 inHg
(Min. 0.7 kgf/cm², Min. 67.7 kPa)
Vacuum is held
3,000rpm

2.
Check the following points with applied vacuum at the purge control solenoid valve (PCSV).
· At Warmed Engine [Engine Coolant Temperature > 80°C(176°F)]
Engine
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.
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 ~ 26.0Ω [20°C(68°F)]

[EVAP. Leakage Test]

1.
Select "Evap. Leakage Test".

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


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