Replaced both o2 sensors on 2003 Camry, but light comes back on. Any help? on 2003 Toyota Camry

Code called for upstream oxygen sensor. I have replaced both as the car has 135,000 miles.

by in Rocky Mount, NC on September 26, 2013
2 answers 3 comments
ANSWER by , September 26, 2013
What brand sensors did you use? Some aftermarket's just dont work! Possible citcuit problem as well.
COMMENT by , September 27, 2013
The upstream sensor was an after market, and the downstream was a Bostch.
COMMENT by , September 27, 2013
DENSO, NTK/NGK. Is what i have the best luck with on Toyota! No luck with Bosh on anything!
COMMENT by , September 27, 2013
does the live data show catts are ok and what about o2 readings
ANSWER by , September 27, 2013
why repl with 2 diff kinds?