The radiator was replaced in May but there's no problem with it, the expansion tank is what blew. That was just replaced in Sept. But I'm pretty sure all these things are related somehow. Just wish I knew WTF is wrong. I hate this feeling; I got all kinds of things going thru my head, like maybe the coolant is seeping into the combustion chamber, but there's no sign of coolant in the oil, nor any oil in the coolant. But that doesn't mean it isn't leaking into the cylinders. I just don't understand why there's heavy moisture pre-cat by the exhaust manifold, and fouling the O2 sensor.
Anyhow, UPS Saturday delivery should bring me a new expansion tank, engine temp sender, coolant temp sensor, air intake sensor, and I'll run over to Pep boys for a new O2 sensor. I'll pull out the spark plugs to see what they look like. But this is the last of it- if I can't resolve this over the weekend, I'm not spending any more money on this POS. Maybe I'll get a beater E30 till I graduate and change careers next year. In the meantime, I'm gonna go get drunk