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Where located Bank 1 Sensor 1 Acura MDX 2003 year

asked Nov 22, 2011 by anonymous

1 Answer

HI there,

Bank 1 is the bank closest to the firewall. Sensor 1 is the O2 sensor BEFORE the catalytic converter. This is either in the exhaust manifold or in the top of the converter.
answered Apr 22, 2016 by Carguy1 (6,495 points)

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