OK, thanks. What you will need to do is follow the fuel lines that go to the fuel rail under the upper intake manifold and look for a leak. The lines go into the dr. side of the fuel rail. Some things that i have seen leaking are the fule pressure regulator, and ave had a few injectors leaking on this engine. Remove the vacuum line from the regulator (1) and smell for gas. Look under the upper intake manifold and you can see each injector(2). Look for wetness on each, or stains from evaporated fuel.