Want this question answered?
Bank one is the one in the very front of the motor basically next to the fan on the motor. easy to see and access
Bank one sensor one on a 2006 Ram is before the catalytic converter on the driver side.
On a 2006 Dodge Dakota bank 1 sensor 1 is driver side above the catalytic converter.
which sensor is for bank 1 sensor 1 on a 2006 nissan xterra
Trouble code P0141 means:O2 sensor heater circuit malfunction (Bank 1 Sensor 2)
That is the sensor in the catalytic converter.
In the Hyundai world bank one is always the firewall side, also called "right" side.
bank 2 is the drivers side of the engine sensor 1 is before the exhaust enters the catalytic converter
Trouble code P1154 means: HO2S-21 (Bank 2 Sensor 1) Transition Time Switch
The one after the catalytic converter.
That means that your o2 sensor is stuck lean (bank 1 sensor 1)
Bank 1 would be the bank of cylinders that contain the number 1 cylinder. If it is a 4 cylinder engine there is only one bank. So, bank 1 sensor 1 would be the first sensor you come to in the exhaust system leaving bank 1 of the engine.