Were bank 1 sensor 2 located on a 1997 tahoe

Which O2 sensor ? Bank 1 sensor 1 or bank 1 sensor 2 or bank 2 sensor 1 or bank 2 sensor 2 . What size engine ?

• Bank 1 is the side of the engine with cylinder 1 on it.
• Bank 2 is the side of the engine with cylinder 2 on it.
• So as you are looking strait ahead at your engine the right side is Bank 1 and the left side is bank 2.

• Hope this helps and thank you for using FixYa.

Regards, Tony

O2 sensor locations break down like this.

The bank refers to which side of the motor. Bank 1 is always the same side of the motor as cylinder number 1. Bank 2 is the other side of the motor.

Sensor refers to before or after the catalytic converter. Sensor 1 is always before the cat and sensor 2 is always after the cat.

So bank 2 Sensor 1 would be the O2 on the passenger side of the motor before the catalytic converter. You should see it threaded into the exhaust manifold.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Diagram: Ford Explorer and V8 O2 (Oxygen) Sensor Locations

Ford Explorer and V8 O2 Sensor Locations diagram. This shows the location of Ford oxygen sensors on Bank 1 and Bank 2. If you want to know where your O2 sensors are, this diagram is your guide.



Hope helps.

it is the heater circuit inside of the oxygen sensor, the sensor the code refers to will need replaced I see it alot

Hi, There are 4 sensors, 2 pre catalytic converter, 2 post. The driver side is bank 1, and the passenger side is bank 2 .The foreward one in the pipe coming from the driver side is bank1 sensor 1, the rear sensor for the driver side is bank 1 sensor 2 . The other side would be the same, but bank 2. Good luck...

sure do. the bank 1 sensor 1 oxygen sensor is located in the exhaust pipe on the same side as the number 1 cylinder. So if the number 1 cylinder is on the driver's side, then the bank 1 sensor will be the forward most oxygen sensor on the drivers side, then next one in line will be the bank 1 sensor 2. Obviously, the other side will be bank 2, sensor 1 and bank 2 sensor 2.....good luck!

P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
THIS IS THE SENSOR BEFORE THE CAT CONVERTER
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
SAME SENSOR, WHEN THEY SAY BANK 2 IT IS THE BANK OF CYLINDERS OPPOSITE THE BANK THAT HAS #1 CYLINDER IN IT,
MAKE SURE THE SENSOR IS CONNECTED AND THAT THE CONNECTOR IS NOT DAMAGED.

P0700 - Transmission Control System Malfunction, clear the code and see if it comes back, all this code is, is the TCM (trans control module)
telling the check engine light to come on for a possible trans fault, many times it is a false code and means nothing is wrong unless it has another trans code stored with it like a shift solenoid for instance.

P1153 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 2 Sensor 1, You would be pretty safe to assume the O2 sensor for cylinder bank 2 ahead of Cat converter is defective.Bank 2 is the side opposite the bank that #1 cylinder is located in.

p1460 cooling fan circuit,p1153 ho2s insufficient switching bank 2 sensor 1,p1133 insuf. swit. sen. 1 or bank 1 sen. 1,p420 catalyst system efficiency below threshold bank 1,p152 o2sen. circuit high volt. bank 2 sen.1