Check engine light -- 300E
Was driving along the other day when I smelled burnt plastic in the cabin. Looked under the car and found that a plastic bag has stuck to the cat converter and got fried; it eventually burned itself away.
Well, a day later the check engine light comes on when I'm at a stop, but disappears when I hit highway speed.
Any clues what's going on here?
Thanks for any replies!
'91 300E, 199k