If you pull a P0420 or P0430 , DO NOT replace the DOWNSTREAM SENSOR like I did
THERE is something else wrong ! SEE the THREADS
1999 GREEN Contour SE SPORT Duratec V6, ATX, SUNROOF, 93,000 Miles, P0420 ON&OFF -replaced DS O2 --did not FIX
*New TORQUE CONVERTER @ 53,000-Intermittent P1744
*New DASH at 53,000 and New DASH lifted-now using MOLLEY bolts to pull down
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