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Check engine light codes for o2sensor. If I empty tank, light goes out for a day

(1996 Lexus LX450)
in Mableton, GA on May 07, 2012
But comes back on after 2 or 3 engine cranks.
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Popular Answer
of Greg's Orange Auto on May 07, 2012
THE O2 SENSOR CAN BE BAD FOR SEVERAL ISSUES. COULD BE THE HEATER CIRCUIT, OR AN UPSTREAM ISSUE CAUSING THE LIGHT NOT NECESSARLY THE 02 SENSOR
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