Replace hoses and fittings
check for vacuum leaks, broken hoses and hisses.
Check for vacuum leaks and good electrical connection at the EVAP vent solenoid
Check for vacuum leaks under the hood. The vent contols need vacuum to operate.
Put some fuel injector cleaner in a tank of fuel. Replace the fuel filter and fix any vacuum leaks.
Air vents in most cars are vacuum controlled. Check for vacuum leaks in any part of the engine system. Also check the ac/heat control system, as they can develop a vacuum leak with time.
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***Check the PCV valve. This can cause a vacuum leak which most likely your problem.***
i got this code when i had a vacuum leak. check all the air hoses for leaks
duct tape
Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.
You will not be able to fix air conditioner leaks by yourself. You will need to find and call a qualified technician. Use your local yellowpages book or yellowpages.com
i have an 84 tercel with the same problem, it takes alittle gas to keep her goin but once warmed up it runs great, i fix a few small vacuum leaks and that helped alot but i still have the problem, let me know if you find the culprit