Nissan P0172 Fuel Injection System Too Rich Bank 1

Description

OBD-II Trouble Code Description for P0172 Nissan

System Too Rich

What does this mean?

OBD2 Code P0172 Nissan definition:
Basically this means that an oxygen sensor in bank 1 detected a rich condition (too little oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1. Note: This DTC is very similar to P0175 Nissan, and in fact your vehicle may show both codes at the same time.

Symptoms

Possible sumptoms of OBD code P0172 Nissan
You will more than likely not notice any drivability problems, although there may be symptoms such as a misfire.

Causes

Possible causes of OBD code P0172 Nissan
The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of “oiled” air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak. There could be a fuel pressure or delivery problem

Possible Solutions

Inspect all vacuum and PCV hoses, replace if necessary Cleanthe MAF sensor. Consult your service manual for it’s location if you need help. I find it’s best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it’s dry before reinstalling Inspect fuel lines for cracks, leaks, or pinches Check the fuel pressure at the fuel rail Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced. Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)

The OBD2 Code Information Be Applicable For Nissan:

2013 Nissan Pathfinder,2013 Nissan Murano,2013 Nissan Juke Nismo,2013 Nissan GT-R,2013 Nissan Altima Sedan,2013 Nissan Almera,2013 Nissan 370Z,2012 Nissan Tiida,2012 Nissan Sunny,2012 Nissan Qashqai,2012 Nissan Murano,2012 Nissan Micra ELLE,2012 Nissan Micra DIG-S,2012 Nissan Maxima,2012 Nissan Juke Shiro,2012 Nissan GT-R,2012 Nissan Extrem Concept,2011 Nissan X-Trail,2011 Nissan Rogue,2011 Nissan Quest,2011 Nissan Pivo 3 Concept,2011 Nissan Patrol,2011 Nissan Murano,2011 Nissan Micra,2011 Nissan LEAF,2011 Nissan Juke,2011 Nissan GT-R,2011 Nissan 370Z,2010 Nissan Qashqai,2010 Nissan Pathfinder,2010 Nissan Navara,2010 Nissan NV200,2010 Nissan GT-R SpecV,2010 Nissan Cube,2010 Nissan Altima Sedan,2010 Nissan Altima Coupe,2010 Nissan 370Z Roadster,2009 Nissan Xterra,2009 Nissan Pixo,2009 Nissan Note,2009 Nissan Murano,2009 Nissan Maxima,2009 Nissan Frontier,2009 Nissan 370Z,2008 Nissan X-Trail,2008 Nissan Rogue,2008 Nissan Pathfinder,2008 Nissan GT-R,2007 Nissan Sentra SE-R,2007 Nissan Mixim,2007 Nissan Altima,2006 Nissan Urge Concept,2006 Nissan Note,2006 Nissan 350Z,2005 Nissan Zaroot Concept,2005 Nissan Xterra,2005 Nissan Terrano,2005 Nissan Sport Concept,2005 Nissan Primera,2005 Nissan Pivo Concept,2005 Nissan Pickup,2005 Nissan Patrol,2005 Nissan Pathfinder,2005 Nissan Micra,2005 Nissan Altima,2004 Nissan Titan,2004 Nissan Tiida

 

Note:

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