Originally posted by JSmith:
what about the O2 sensors. If one of the two sensors on each bank wears out and begins giving erroneous signals it would likely give the same code.
Either way the sensors should be covered by the warranty and if the dealer is smart they will test them before jumping to replacement of the catalyst units.
You are correct sir. There is a small chance that the O2 sensors are causing the problems. But, bad O2's have their own specific codes and I am hoping it is a cat issue. The Federal Warranty on Emissions does not cover O2 sensors up to the 80,000 miles; only cats. That would come out of my pocket. 
The Ford CD says to check the O2 sensors and to check the exhaust for leaks or for an obstruction. If all above check out, then they change the cats.
1998.5 E1 SVT Contour #5482/6535
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