Mini P0431 Warm Up Catalyst Efficiency Below Threshold Bank 2

Description

OBD-II Trouble Code Description for P0431 Mini

Warm Up Catalyst Efficiency Below Threshold

What does this mean?

OBD2 Code P0431 Mini definition:
Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Symptoms

Possible sumptoms of OBD code P0431 Mini
You will likely not notice any drivability problems, although there may be symptoms such as a rough/hard idle when cold.

Causes

Possible causes of OBD code P0431 Mini
A code P0431 Mini may mean that one or more of the following has happened: The catalytic converter is no longer functioning properly An oxygen sensor is not reading (functioning) properly There is an exhaust leak

Possible Solutions

Inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you’re at it. One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it’s out of it’s bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It’s worth checking into.

Related Codes

P0420 Mini P0421 Mini P0422 Mini P0423 Mini P0424 Mini P0425 Mini P0426 Mini P0427 Mini P0428 Mini P0429 Mini P0430 Mini P0432 Mini P0433 Mini P0434 Mini P0435 Mini P0436 Mini P0437 Mini P0438 Mini P0439 Mini


The OBD2 Code Information Be Applicable For Mini:

2013 Mini Vision Concept,2013 Mini Roadster,2013 Mini Cooper,2013 Mini Countryman,2013 Mini Clubvan Camper,2013 Mini Clubvan,2013 Mini Clubman Bond Street,2012 Mini Rocketman Concept,2012 Mini Coupe,2012 Mini Clubvan Concept,2012 Mini Bayswater,2012 Mini Baker Street,2011 Mini WRC,2010 Mini Scooter,2009 Mini Cooper,2008 Mini One,2008 Mini Cooper,2008 Mini Clubman,2007 Mini Cooper,2006 Mini Concept,2005 Mini Cooper,2004 Mini XXL,2004 Mini Cooper,2002 Mini Cooper,2000 Mini Seven,2000 Mini Cooper

 

Note:

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