Catalyst & Exhaust Systems: Notes
WARNING: This page is about a different car, the 2002 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Since bi-fuel vehicles can operate on gasoline, they have the same catalyst and exhaust equipment as gasoline fueled vehicles. For additional information not contained in this article, see CATALYST & EXHAUST SYSTEMS
in THEORY & OPERATION - EEC-V - GASOLINE & NGV article.