I also submitted this in the fuel sytem section.
6/7/2010
I gave my 2002 (70,000m) Diamante a tune-up this weekend. Plugs, wires cap & rotor. Replaced both rocker arm cover gaskets. Put everything back together. Started it up. Tore up and down the street and the thing was a bit more responsive. Everything was great. Woke up the next day. Smelled gas from the front of the car. Started the car, notice that it took a couple seconds longer to fire. Ran to the store and back. shut the car off and noticed the strong gas smell. Popped the hood and noticed under the plenum a little pool of gas on the intake. This would be injector #5 if they are 1 for 1 with the cylinder arrangement. The other way would to be from driver side lookin to passenger under the plenum, it would be the first injector.
My question is...... Could this be a faulty O-ring I might have disturbed, or an injector that I ruined when I loosen up the two bolts that hold down the fuel rail. Is there anyway to tell with the symptoms I gave what it could be? Injector, or O-ring? I would like to do this once (more) and do it as cheap as possible. Would like to mention again the car is not missing and feels a tad quicker.

Thanks,
Ryan

6/7/2010
Issue has been resolved.....
Must have loosened one of the injectors and crushed an O-ring. Removed Injector 1/3/5 cleaned and replaced all 3 O-rings.

-Ryan