Kia 2004.5 Spectra Service Technical Training page 131

2004.5 Spectra Technology
EVAPORATIVE TESTING
Driveability
The 2004.5 Spectra fuel and evaporative system is
designed with the following components:
1. Non-threaded fuel cap
2. Fuel filler pipe
3. Check valve (CCV)
4. Fuel Tank
5. ORVR control valve
6. Vapor line
These changes on the SULEV lead to a zero emissions
style evaporative emission system. The evaporative
emission control monitoring system consists of fuel
vapor generation and evacuation leakage check steps.
The OBDII system checks if vapor generation due to
low fuel temperature is low enough to start
monitoring. Then it opens the PCSV to evacuate the
evaporative system by ramping up the on or open time
in order to maintain the vacuum level. The last check
determines if there is a vacuum leak in the system.
7., 8., 9. & 11.
3 ply evap-hose
10. Canister
12. Canister closed valve
13. Fuel feed line
14. Fuel tank pressure
sensor (FTPS)
15. Purge canister
solenoid valve (PCSV)
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