Delphi Automotive Systems (NYSE: DPH) and Orbital Engine Corporation announced today they have entered into a co-development agreement to jointly develop a new gasoline direct-injection technology for automotive engines. The companies will focus joint development on a spark plug injector that integrates the spark plug and fuel injector into a single device. The technology will have the benefits of low-emission, fuel-efficient direct fuel injection without the costs associated with a significant re-design of the engine.