the oxygen sensor(s) on any car is gonna be screwed in the exhaust. the primary sensors are screwed in the exhaust manifolds. the secondary sensors are going to be screwed right before, in, or right after the catalytic converters. if your getting a check engine light, find out what code is in the computer and the definition. b1s1 means bank 1, sensor 1. bank1(or2) means which exhaust side, and sensor1(or 2) is the location of the sensor on that side. the side that has the number 1 spark plug is going to be bank 1.
Under the intake manifold.
Wher are the oxygen sensors located on a 2001 rx300 Lexus SUV
2003 es300 lexus
There are two O2 sensors on a '94 Lexus ES300. Both are located on the exhaust manifolds. There is one accessible from the front just to the right off-center of the engine, and one is located on the rear of the engine down low approximately centered with the engine. Hope this helps. WB
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Unfortunately, the 2002 es300 was the first year that Lexus did not use a IACV in the ES300.
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2
there is usally 3 o2 sensors 1 on the front of your motor looks like a spark plug sticking out and one on your exsaust and another one somewhere else look on google
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