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Registered
Join Date: Oct 2003
Location: London Ont Canada
Posts: 3,120
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A single bad spark plug misfire can send enough unburned fuel into a cat to cause it to overheat and meltdown in a matter of 45 minutes. I have seen one on a 97 Jeep with 75000km that the core actually melted ,broke up and fell out in pieces.Another on a Windstar . I suspect yours is only partly failed and still working but not well enough.
I also could be wrong as my SC passed a few years ago with no cat. As the standards are tighter for an 88 compared to an 80 .The cat condition becomes more important
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1980 911 SC 3.6 coupe sold
1995 993 coupe
1966 Mustang Shelby clone
1964 Corvair Spyder Turbo gone
2012 Boss 302
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