Aight, got a problem. My mom noticed that there was a gas smell coming from her 96 cavalier. I traced it to one of the fuel injectors. I replaced the fuel injector, put everything back together, and noticed that there is a slight fuel leak now coming from the fuel pressure regulator.

sample pic:
http://www.partsamerica.com/productd...84&PTSet=A

anything I may have messed up to cause this to happen, or should I just swap in a new one?