New Code, very weird

[puddinboo]

Originally Posted by ProfessorX5

The VCG was replaced shortly before I bought it, supposedly. I wonder if they bothered to clean up while they were doing it, since the engine is dirty as hell (oil is already dark after 2000km).

I'll check #6 in the morning, though I'm puzzled as to why the engine would run smooth again after revving it for a while, and why it was only shaking at low rpms.

Thanks, guys. I'm puzzled and worried, but undaunted.

when was the oil changed last? did you do it or get it done by someone? when you say oil is dark meaning black and thick on the dipstick?