The control module monitors how long it take the sensor to warm up and start sending an adequate signal. If not, the heating element inside the sensor has high resistance and the sensor should be replaced. Set your meter to the ohms setting. Yesterday I Went To Auto Zone And Borrowed The Obd 2 Code Reader. Bank 2 refers to the side of the engine opposite the 1 cylinder.
I know they have something to do with the oxygen sensors. During the lean periods the unburned oxygen is stored in the catalyst, then during the rich times the unburned fuel is mixed with the oxygen and burned. The trouble code is P0161. Once again, in this case, the sensor should be replaced. YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Can anyone tell me how I can check what is going on and how I can remedy these dang nabbed codes, thank you eh.
The upstream oxygen sensor O2S is located ahead of the catalytic converter. Anyways, the codes that my scanner came up with are P0141 twice, P0157 and P0161 twice. Without a code to get you started there are way too many things to check. Vehicle emissions could be increased due to this problem. I really do not want to change out more than one. I really do not want to change out more than one.
This code can only be caused by problems in O2 sensor heater circuit, or by the sensor itself. How serious is the P0161 code? Your mechanic can connect a scanner to view live data that will show the switching rates of the converters. She didn't hit very hard- mostly scs along the quarter panel. If you live in a place that requires emissions testing, the check engine light will cause you to fail. Envoy P0161 Diagnosis Here is a fantastic video that covers all aspects of diagnosing a P0161 trouble code.
The computer initiates things like momentarily going too lean to see if the converter responds as expected. By consulting the wiring diagram for you vehicle, determine which pin on the connector is power and which is ground. When it goes bad, it is more difficult for the engine to get the air fuel mixture right. The Service Engine Light Came On Two Days Ago. However I was told by a mechanic that I trust to be very knowledeable that an o2 sensor is going to be a waste of money without a catalytic converter.
Common mistakes when diagnosing the P0161 code The most common mistake is not performing any diagnostics at all and simply replacing the bank 2 sensor 2 oxygen sensor. That will cancel some of the other self tests performed by the computer so there can be a pile of other problems that won't be detected. It is used to determine the concentration of oxygen in the exhaust gas. The switching rate is very slow, as in perhaps once a minute or two. Thanks, mwmst Bank2 sensor2 is located on the pass side exhaust behind the cat convertor. I asked a mechanic who I have past experience with that has never steered me wrong and he says that without a catalytic converter it doesnt matter.
However, from time to time there can be an issue with the wiring harness being damaged in some way. A normal reading for wiring is less than half an ohm. He said it could be a map sensor. However like I said the engine light was never on before and the converter has been out of there for years and it ran fine. If you don't have the converter in the system the computer is going to set the efficiency code.
But, like anything that causes the service engine soon light to come on it is a good idea to have it fixed as soon as possible. Also sometimes there is a pcm reflash for the pro. Can someone provide the exact location of this sensor. If someone removed them, the only thing I can suggest is to install replacements, check the wiring to the rear sensor on the passenger side, erase the stored fault codes, then see what new codes are set. . Testing O2 heater element resistance Courtesy: 2carpros. These sensors contain a heating element that brings the sensor to operating temperature faster.