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
1 answer
ANSWER by on 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.