Hey people, first off I'm new to the forum and new to owning a Ford. I, by choice, have never owned a car with a Cat. Converter. I recently aquired a 90 LX, 4 banger to play around with. Car has alot of possibilities, just don't tell the wife, While driving the car doesn't go faster then 20 mph. Is is possible that the Cat heated up at one time and clogged up?? How can I check it and not break the bank??