2004 mitsubishi endeavor 3.8 p0141 code which points to 02 sensor but where is the bank 1 sensor 2 located

Here's a link for codes P0446,P0443. https://www.obd-codes.com/p0446 Here's the link for P0403. P0403 Exhaust gas recirculation EGR circuit malfunction Here's code P0135 P0135 OBD II Trouble Code O2 Sensor Heater Circuit Malfunction Bank 1... Here's code P0141 P0141 OBD II Trouble Code O2 Sensor Heater Circuit Malfunction Bank 1... Here's code P0155. P0155 OBD II Trouble Code 02 Sensor Heater Circuit Malfunction Bank 2... Here's the last code.yay P0161. P0161 OBD II Trouble Code HO2S Heater Circuit Malfunction Bank 2 Sensor 2... The last 3 codes might just be one sensor.

P0141 indicates oxygen sensor 2 in bank 1. Bank 1 is on the side of the engine where the first cylinder is.

Your firing order (and the location of your cylinders) can be found here:
http://autorepair.about.com/library/firing_orders/bl-fo-0286.htm

And further reading on the code you pulled can be found here:
http://www.obd-codes.com/p0141

Please provide the actual code for help with diagnosis.

Oxygen sensors monitor the combustion by products produced by your engine and send this information to your emission control system.
The location of sensors can vary from one model to the next.
Suggested is to obtain shop manual for your model to use as a reference.

The V6 engine (any V6) was invented to give the appearance of a V8 but reduce costs.
Unfortunately it's impossible to balance the firing order of three cylinder engine banks so you will have a difficult time getting any V6 to idle smooth.
There is nothing wrong with the engine you simply have to live with the lumpy idle or buy a V8 car.

PO141 is an 02 sensor sensor heater circuit malfunction (bank 1 sensor 2)

PO155 is the same for bank 2 sensor 1.
Depending on your mileage, and no wiring problems, you will need to replace the oxygen sensors and clear the codes.

I hope this helps.

P0804 is the highest OBD-II trouble code.

Here's your Oxygen sensor codes.

P0130 02 Sensor Circuit Malfunction (Bank I Sensor 1)
P0131 02 Sensor Circuit Low Voltage (Bank I Sensor I)
P0132 02 Sensor Circuit High Voltage (Bank I Sensor 1)
P0133 02 Sensor Circuit Slow Response (Bank 1 Sensor 1)
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
P0135 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
P0136 02 Sensor Circuit Malfunction (Bank I Sensor 2)
P0137 02 Sensor Circuit Low Voltage (Bank I Sensor 2)
P0138 02 Sensor Circuit High Voltage (Bank I Sensor 2)
P0139 02 Sensor Circuit Slow Response (Bank 1 Sensor 2)
P0140 02 Sensor Circuit No Activity Detected (Bank 1 Sensor 2)
P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0142 02 Sensor Circuit Malfunction (Bank I Sensor 3)
P0143 02 Sensor Circuit Low Voltage (Bank I Sensor 3)
P0144 02 Sensor Circuit High Voltage (Bank I Sensor 3)
P0145 02 Sensor Circuit Slow Response (Bank 1 Sensor 3)
P0146 02 Sensor Circuit No Activity Detected (Bank I Sensor 3)
P0147 02 Sensor Heater Circuit Malfunction (Bank I Sensor 3)
P0150 02 Sensor Circuit Malfunction (Bank 2 Sensor I)
P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I)
P0152 02 Sensor Circuit High Voltage (Bank 2 Sensor 1)
P0153 02 Sensor Circuit Slow Response (Bank 2 Sensor 1)
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)
P0156 02 Sensor Circuit Malfunction (Bank 2 Sensor 2)
P0157 02 Sensor Circuit Low Voltage (Bank 2 Sensor 2)
P0158 02 Sensor Circuit High Voltage (Bank 2 Sensor 2)
P0159 02 Sensor Circuit Slow Response (Bank 2 Sensor 2)
P0160 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)
P0161 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 2)
P0162 02 Sensor Circuit Malfunction (Bank 2 Sensor 3)
P0163 02 Sensor Circuit Low Voltage (Bank 2 Sensor 3)
P0164 02 Sensor Circuit High Voltage (Bank 2 Sensor 3)
P0165 02 Sensor Circuit Slow Response (Bank 2 Sensor 3)
P0166 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)
P0167 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 3)

Note: "Bank 1" is the side of the engine with cylinder 1. "Bank 2" is the other side.

P0141 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

The oxygen sensor screws into the exhaust and the sensor end protrudes into the pipe so that exhaust gases pass across the sensors internal element. There is a steel shielding with slots that direct exhaust flow across the actual element. As a note, oxygen sensors used to determine engine fuel ratios are always located in front of the catalytic converter. The sensors behind the cats are called monitors and we will discuss these later. Sensors are normally described with the prefix HO2S meaning Heated Oxygen Sensor and followed with bank and position number. For example HO2S11 would be the oxygen sensor on bank 1 and first in line (pre catalytic converter) and HO2S12 would be on bank 1, but second in line (the monitor) An oxygen sensor creates a voltage between 0 and 1 volt by means of a chemical reaction between the sensor element and the oxygen in the exhaust passing across that element. Outside air also passes through the sensor and it is a comparison between the oxygen content in the exhaust and fresh air that actually determines voltage output (information for trivial purposes only and for curious techs). Believe it or not, the fresh air on many sensors actually travels through the wiring insulation! Anyway, a voltage closer to one volt indicates a rich condition and closer to zero indicates lean. The computer uses this valve to constantly adjust fuel trim to maintain a 14.7:1 air fuel ratio.

Hope this helps (remember to rate this answer).

Hi,
Bank 1 sensor 2 is on the firewall side of the engine, and is the bottom O2 sensor (the one furthest from the engine). It is accessed from below the vehicle.

There are only V6 endeavors in the US, are you certain you do not have a 3.8L V6?


Bank 1 refers to the side of the engine that contains cylinder number 1. This is the side of the engine nearest the firewall.
Sensor 1 refers to the first sensor off the manifold, or closest to the engine.
This also is the O2 sensor that is located before the catalytic converter in the manifold. Sensor 2 is located after the catalytic converter, further down below the car.

Hi,

Bank 1 Sensor 2 is located on the Right Hand Bank - After the catalytic converter. It is on the bank closest to the firewall and after the catalytic converter.

Hope this helps.
Kanu