Originally Posted by cmiovino
What CEL is it? I'd assume it has something to do with a P0420 for a bad or non-existent cat.
that and because the o2 sensors are A. shot and B. not hooked up. But even if they weren't shot and hooked up it would still throw a CEL because of the way they were designed by the previous owner. what about ebay UEL headers. Will they still cause a CEL?