Hi, sorry to hear about your problem. It sounds like you may be replacing stuff until you find the problem, or the fault becomes permanent. May be the next sensors to investigate/replace are the camshaft sensor, or the map sensor. Did you check your air filters to see if they weren't clogged (not sure they would lead to your symptoms but may as well check). I once had a bad short that would not only cause the battery to drain overnight, but the car would stall intermittently (turned out to be water in the truck covering the CLP module).
Good Luck, keep us informed.
-Jerry