Discovered the 240's problem.

[CaptainHenreh]

Well, I showed the plugs to my father. He reminded me I used oil to test my compression, and wouldn't that have resulted in oil on the threads? He showed me the plug from an oil-burning car (our metro) and it had gooey shit all over it. He says my black plugs are from running rich. Find out why I'm doing that, and I'll find out what's wrong with the car.

So...I am going to attempt to pull my codes from my ECU this afternoon. Anyone want to help? Free use of air tools for any work you need done...