Well, I can (cautiously) rule out #2 since I am the only person who has owned and worked on this car for the past six years. The car is nearly stock except for the suspension, and no repairs have been made to the car within the past two weeks (other than a brake line under the car).
I just ordered a new distributor for it, and I will put that in this weekend. If that doesn't fix it, then I will address the ECU and wiring. I will check the ECU for water evidence before I do anything as a precaution.
Thank you very much Craig, Greg, and Grant. I will report my findings this weekend after I install it.