2001 oldsmobile silouette, check engine light, 02 sensor

2001 OLDSMOBILE SILHOUETTE
140,000 MILES • 6 CYL • FWD • AUTOMATIC
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STELLI
  • MEMBER
  • 2 POSTS
My van ran fine but the check engine light was on. The code read that i needed an oxygen sensor. I replaced the oxygen sensor, the check engine light went out, van drove fine for a short while but then it started to lose power and almost felt like the transmission was bad. Could the new 02 sensor be faulty or is there another problem?
Apr 13, 2011 at 4:52 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Scan it again if its the same code if so check wiring back to the computer
Apr 13, 2011 at 5:09 AM
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STELLI
  • MEMBER
  • 2 POSTS
I scanned again, now reads that it is misfiring.
Apr 13, 2011 at 1:45 PM