Kia Cee'd: Evaporative Emission Control System / Repair procedures

Inspection
[System Inspection]
1.
Disconnect the vapor hose from the throttle body and connect a vacuum pump to the nipple on the throttle body.
2.
Check the following points with applied vacuum using a vacuum pump.
· At Cold Engine [Engine Coolant Temperature < 60°C(140°F)]
 
Engine
Operating
Condition
Applied
Vacuum
Result
Idle
0.5kgf/cm²
(50kPa,7.3psi)
Vacuum is held
3,000rpm

· At Warmed Engine [Engine Coolant Temperature > 80°C(176°F)]
 
Engine
Operating
Condition
Applied
Vacuum
Result
Idle
0.5kgf/cm²
(50kPa,7.3psi)
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
0.5kgf/cm²
(50kPa,7.3psi)
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)]
Schematic diagrams
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Other information:

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