"Bucking" & Check engine light question

[Greta]

My 2002 Impreza went through several minutes of "bucking" and then the check
engine light came on and stayed without flashing. According to my manual it
is probably a catalytic converter problem. Something does not seem right
about that conclusion. Before I go to the dealer I wonder what you folks
think.
Thanks
Greta

 

[Remco]

My 2002 Impreza went through several minutes of "bucking" and then the check
engine light came on and stayed without flashing. According to my manual it
is probably a catalytic converter problem. Something does not seem right
about that conclusion. Before I go to the dealer I wonder what you folks
think.
Thanks
Greta

I'd say that is is impossible to say without reading the code. Bucking
could be caused by many things - a clogged fuel filter could cause it
but that would just be a guess.
Go to pepboys and ask them to read the code your car is throwing.
They'll do that for free. Don't have them fix anything because they
are mostly morons.
Report back with the code.