96 FI Metro Running Lean

While I was changing my front crankshaft seal on my 96 Metro I decided to pull the plugs and take a look at em since I think they have about 40,000 miles on them…and this is what I found.

http://www.webaphoto.com/pictures_view.exe?albumid=39158&pin=2411760219849006628480843717377701574756712701 0750

If you click on the thumbnail it will blow up the picture. This car has 110k miles, and is fuel injected (and yes it’s 3 cyl). From looking at the plugs it looks like it is running way lean to me. Since it’s fuel injected is there something that’s could be causing it to run so lean, bad sensor or something else? I'm used to fiddling w/ carbs so I don't have a clue where to start. Isn't the damn computer supposed to automatically correct the A:F ratio? When I changed the plugs last time I don’t recall it being bad at all so I’m pretty sure this is a new problem.

O2 Sensor!