Yes, I'm sure. Your ID (not necessarily a passport) is still checked at the border of the Schengen space (at the entry point) but you don't need a passport or a visa of any kind. You just show your Romanian ID to the customs officer and then enter the country.

There's a document issued by the Romanian Ministry of Internal Affairs: http://www.mai.gov.ro/Documente/Utile/Calatoria%20in%20Europ... (unfortunately they didn't bother writing it in anything other than Romanian) - it clearly states that Romanians do not need visas for any EU country (but they still need either a passport or an ID card).