Where is Bank 1 Sensor 2 located on a 2004 Mazda Tribute? This is an O2 sensor.OBDII code P0141.

P0446: EVAP System Vent Control Circuit http://www.autocodes.com/p0446_ford.html

P0135: O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0135 Ford O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1

P0141: O2 Heater Circuit Bank 1 Sensor 2
P0141 Ford O2 Heater Circuit Bank 1 Sensor 2

P2195: Oxygen Sensor Signal Biased/Stuck Lean - Bank 1 Sensor 1
http://www.autocodes.com/p2195_ford.html

P0403:Exhaust Gas Recirculation Control Circuit http://www.autocodes.com/p0403_ford.html

P0171: Fuel Injection System Too Lean Bank 1 http://www.autocodes.com/p0171_ford.html

There are 2 O2 sensors on each bank. Here are some pics of where they are located:


mazda tribute o2 sensor location Google Search

The problem is with the bank 1 downstream O2 sensor.
Most likely it is the O2 sensor itself, but it can be other things as well.

This is from one site:

- Faulty Heated Oxygen Sensor Bank 1 Sensor 2
- Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
- Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
Read more: http://www.engine-codes.com/p0054_mazda.html#ixzz3pvw6DApD

Hi Charles,

GM products have 4 O2 sensors attached along the exhaust pipes coming off the manifold. Bank 1 is aligned to cylinder 1 on the engine which is the driver's side. Sensor 2 is the one after the convertor (Sensor 1 being the one before the convertor). Link attached for more information.

Oxygen Sensor Locations

I have changed out one of mine; quite easy, but you need a sensor wrench which you can find an any automotive store for around $15.

The part is available readily enough - link attached.

Good luck

Code 136 is for a problem with the O2 sensor bank one sensor two.
That is the sensor after the catalytic converter.
The sensor or the wiring would need to be checked.

The P0141 code refers to your o2 sensor heater circuit. while many times replacement of the o2 sensor can solve this problem you possibly have a short or open in your o2 sensor heater circuit. Also was the proper o2 sensor changed p0141 is the bank 1 number 2 sensor. Bank 1 refers to the side of your engine where the #1 cylinder is located sensor 2 should be the second sensor on that side depending on how many sensors you vehicle has. hope this helps

Hi Paul, Have you had a fault code relating to the knock sensor? That sensor controls ignition timing which can have a relationship to the fault codes you report? Regards John

Diagnostic Test Code (DTC) P0141 is defined by SAE J2012 as "O2 Sensor Heater Circuit Bank 1 Sensor 2"

Most of the time, this is caused by the heating element in the O2 Sensor being burned out. However, there is a chance that there is a circuit malfunction elsewhere besides in the O2 Sensor itself.

Also see this article:
Which Oxygen Sensor Is It?

P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)

P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

Which O2 sensor did you replace?
P0141=O2 Sensor Heater Circuit Bank 1 Sensor 2,
this is on the drivers side,and the sensor after the converter