Check Engine light is back on, just got rear exhaust oxygen sensor replaced... on 2002 Toyota 4Runner

there are two other lights along with the check engine light that came on at the same time...TRAC OFF & VSC TRAC. What is the most likely problem?

by in Cumming, GA on February 25, 2011
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1 answer
ANSWER by , February 25, 2011
shouled change all o2 sensor some have more then one