Passat 2005 Running On Used Soy Oil And B100

Sometimes I think just looking at the engine will help me fix my car. I use the force and bond with the engine. In my meditative state I noticed a warning on the oil cap that basically says DO NOT OVER FILL THE OIL OR YOUR CATALYTIC CONVERTER WILL BE DAMAGED. Oh, that's interesting. Guess what happening right before this problem started. Over filled the oil (the guy who filled my oil was compensating for the mysterious oil leak). Then I went to the manual to read about the catalytic converter and guess what else can damage it? Running out of fuel. That morning after the oil change I ran out of fuel and couldn’t start the car and had lots of misfires. So that’s where I'm starting folks - replacing the catalytic converter.