Originally posted by horseydug:
If your engine layout matches N.A. version I described then you have plugged pre-cat, although I'm surprised there is no CEL.
Mondeo's don't have Check Engine Lights 
Mondeo V6 RS
RS Bodykit
RS Lowered
SVT UIM
SVT TB
SVT LIM
Philips 6000K HID ZENON
Twin Stainless Exhaust
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