That indicates the engine isn't getting the fuel it should. It could be that the fuel pump or gas line is clogged to some degree. You should take it to a mechanic to further diagnose the problem. If you comfortable doing the work, it's neither expensive or difficult.
If you have a Check Engine Light, have a mechanic run a diagnostic. It could be a fuel sensor. Check your fuel injectors, injector coils and vacuum hoses. Make sure your plugs are securely fastened - maybe you have a misfire.