2007 Kia Optima Q&A
2007 Kia Optima Question: Code P0456(not the gas cap) how much does it cost to fix a faulty vent solenoid?
The check engine light came on 3 days ago and it's not the gas cap, the 2 other problems (according to AutoZone) are either leakage in emission system or a faulty vent solenoid. This morning the car had trouble starting and the engine sounds "weaker" than it used to. - laluconslaba
Another name for that part should be a purge valve. Not sure on this model but most easy to find in engine compartment. Look for a little green cap located on hose that comes from fuel tank and part usually near that. Inspect your hoses carefully on that line especially near the valve. Might just be small crack or disconnect of hose. If not leak i'd replace valve. Will lack power with this problem- motor relies on the evaporated fuel from tank. - rpclements