witch o2 senser is bank 1 the one closest to the motor or the on e at the cat on 2005 Mazda RX-8

the code that came up saID O2 SENSER BANK 1

by in Narvon, PA on August 01, 2011
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1 answer
ANSWER by , August 02, 2011
Hello yes the one closest to the engine is bank 1 sensor 1 you might want to make sure the oxygen sensor is the problem and not a vac.leak.HAVE A BLESS DAY from DR. RECO.