should be a M18 x 1.4
Screwed into the exhaust system.
its located in the back of the motor.
It is for the oxygen sensor. There are two, one before the catalytic convertor and one after, this is for the one after it. Follow the exhaust from the side of the engine down and look for something resembling a spark plug in the exhaust pipe.
The exhaust manifold
That code means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be. It could be a bad oxygen sensor, a bad catalytic converter or and exhaust leak.
A/F sensor are located in each exhaust manifold, O2 sensor After catalytic converter on exhaust pipe
There are 3 Oxygen Sensors on a 97 Toyota Camry with a 3.0 liter v6.An oxygen sensor is mounted on each exhaust manifold (left and right), And the third is mounted on the exhaust pipe after the catalytic converter.
The oxygen sensor is located in the exhaust manifold before the catalytic convertor. If you look down between the radiator and the exhaust manifold a few inches before the exhaust pipe connects to the exhaust manifold you will see the Oxygen sensor. The sensor will have 2 wires coming from it and it kinda looks like a sparkplug stuck into the exhaust manifold. There is 2 nuts that hold the oxygen sensor into the exhaust manifold.
It screwed in to the exhaust manifold. To change it you unplug the sensor and unscrew it with an O2 sensor socket.
replace oxygen sensor on the left bank(side towards front of car) it is located on the exhaust manifold staring you in face when hood is open Read more: Toyota Highlander Limited what does trouble code p1150 on - JustAnswer http://www.justanswer.com/toyota/490ow-toyota-highlander-limited-does-trouble-code-p1150.html#ixzz1T8tewlwW
its is located downstream on the backside exhaust manifold
O2 sensor in the exhaust manifold near the engine