Josh-
Thanks for the link. I'll try to check my codes within the next week or so and I'll let you know what I find. More than anything, now I finally know what those green and black connectors under my dash are for. When I first saw them a year ago or so, I connected them, and when I saw my CEL come on, I thought that maybe the previous owner disconnected them to keep the light off. Glad I know what they're for.
Bheinen74 -
I actually replaced the coil last year with a diamond coil pack. When I did the change then I noticed no difference in drivability or gas mileage. Over this past October/November I installed an MSD DIS-2 amongst my "slew of mods". Since then the car has run much smoother (with the partial throttle hesitation I used to experience all but gone), so I find it hard to believe the car has an ignition problem running the way it has been. I could always disconnect the MSD DIS-2 and see what happens, as I installed it in such a way that I can run the stock ignition in 20 seconds if need be.
I just drove the car over the weekend BABYING it the entire time (accelerating insanely slowly onto on ramps, off of lights, etc.) to the point where I tried to avoid creating any boost what-so-ever (which I found to be impossible...the turbo spools and creates boost under almost any acceleration). Even so, the best I could muster was 18.3mpg - much better, but still far below where I was last year driving the car much harder. I'm hoping the CEL sheds some light on the proble and it's not just that, even when I'm crusing on the highway at a steady 75mph, I'm still averaging about 1psi in the intake manifold.
I've never desired lag so bad in my life.