I have a 99 escort, 133,000 miles. Check engine light came on and has been
on for a week. When the car has been driven a while there is a burning smell
coming from the engine compartment. One time I saw a puff of smoke come out
from under hood while at a stop light. Operating temp is in the normal
range. I had a friend check the code and it was "P0420". Something about
the catalytic converter, but he didn't know what it meant. He reset the
service engine light and the smell went away. Any ideas?
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