1994 Ford Aspire Q&A

1994 Ford Aspire Question: car running rough

When I start my car it seems ok, but after warming up it spits and sputters and doesn't want to idle -
Answer 1
I would say it is a plugged catalytic converter. -
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It has never thrown a code and when you first start the car it will idol really rough to you have to put your foot on the break and give it gas to back up but you don't want to back up too fast ...