Question about 2012 Acura MDX Base 4dr SUV 3.7L V6 AWD 6-speed Automatic
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Posted on Jan 02, 2017
SOURCE: MIL light on
P0139 Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) Slow Response This is the Catalytic Converter efficiency monitor, it is reporting that the Cat Conv is not working as it should (cleaning up the exhaust), how many miles on the car?
Posted on Dec 22, 2008
You may have more than 1, did he by any chance tell you which one, if more than one? Either way, you may have to jack it up & put on safety stands, or just reach down to exhaust manifold,but that depends on engine, which one etc. If you can give more info, we can help. It sticks out from your exhaust manifold, or pipe(s) looks similar to a spark plug and has wire(s) coming from it.
Posted on Jun 19, 2009
If I am not mistaken bank one should be your driver side. However your sensor one will be before the cat converter. So you just have to find the o2 sensor before the cat converter on the driver side. Good Luck.
Posted on Oct 12, 2009
This is a bank 2, sensor 1 code, which means the computer is picking up a problem with the O2 sensor that is located before the catalytic converter on the front bank of cylinders.
Hope this helps, if you need more info, just ask,
Posted on Dec 19, 2010
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