It is the one on the passenger side behind the catalytic converter
Passenger side
Pasenger side post converter
The Sequoia has four oxygen sensors, two on each side. The ones in front of catalytic are pos 1 and after are pos 2. Bank 2 is on passenger side, Bank 1 is on the driver's side.
The 2008 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2013 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2010 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2012 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2011 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2014 Toyota Sequoia has a 10 ft. 2 in. (122 in.) wheel base.
The 2013 Toyota Sequoia has free maintenance for 2 yr./ 25000 mi..
The 2014 Toyota Sequoia has free maintenance for 2 yr./ 25000 mi..