Unlock Engine Efficiency Bank 1 Sensor 2 Replacement Guide

There are two O2 sensors, an upstream (on the rear exhaust manifold) and a downstream (on the side of the catalytic converter). The downstream ... Banks 1, sensor 2 would be the 2nd O2 sensor on the passenger side of the engine. Sensor 1 is the sensor before the 1st Cat, sensor 2 would be ... I've located the sensor under the car just before the catalytic converter. It sits just before aj in the pipe that comes down from the engine and the piece ... A single cylinder bank has two oxygen sensors: one before the catalytic converter (upstream), and one after (downstream). The first one gives ... You'll need to determine bank 1 vs. bank 2 to find the upstream and downstream O2 sensors. You can tell which bank is which by looking at the ... Bank 1 Sensor 2 is O2 sensor Passenger side farthest from engine(behind Cat converter) Only on Dual exhaust systems. Not sure if this is what you're asking, but Bank 1 refers to driver's side, sensor 2 refers to the rear O2 sensor. Bank 1 sensor 2 is a downstream oxygen sensor. As I've already explained, its duty is to make sure that the catalytic converter on the bank it ... The P0136 OBD-II Trouble Code in your 2001 Toyota Highlander refers to "O2 Sensor Circuit Malfunction (Bank 1, Sensor 2)". Here is a generic guide to help you ... When I connect my OBD2 Tool it's telling me that O2B1S2 (V) = 0.000 all the time, regardless of the car being on, off, accelerating, decelerating, driving or ...