Harness the Power Bank 2 Sensor 1 for Exceptional Fuel Economy and Performance

The P0150 code occurs when the ECM gathers a reading of Sensor 1 on the Bank 2 side that falls outside of the .1 to .9 volt range. What Bank 2 means is the side ... Sensor 1 is always an upstream sensor. Bank 2 is the front bank (closest to the radiator), the sensor is in your face when you open the hood and look down. Bank 1 Sensor 2 is the passenger side downstream (post-cat sensor). A Bosch downstream sensor is $53 and replacing it shouldn't take a ... that would be drivers side. Bank 2 on the 3.5 and 2.7L is the left Bank (drivers side) just as an FYI ... A new tuner is looking over my logs and pointed out that my bank 1 02 is 10-12% higher (adding more fuel) then my bank 2 (1-3%). Bank 2 Sensor 1 is located on the Front of the engine, Before the catalyst, it should be visible from under the hood, and lucky you, it should be the easiest ... Bank 1 is on the left. Bank 2 is on the right. Sensor 1 is just before the cat, sensor 2 just after/on top of the cat. Have fun getting there. Our cars don't have 'bank one' or 'bank two'. We have upstream and downstream. They are different sensors. The upstream one is the important one. That sensor is the driverside rear sensor on the secondary cats. It's easy to change, just be very careful, as alot have damaged the sensor when moving over to ... Bank - goes behind the engine Cylinder number. Bank #1 is behind Cylinder #1. Bank #2 is behind Cylinder #2. Put in new Bosch sensors from Amazon if you can.