Hyundai P0171 Fuel Trim System Lean Bank 1

Description

OBD-II Trouble Code Description for P0171 Hyundai

System Too Lean

What does this mean?

OBD2 Code P0171 Hyundai definition:
Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much 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 P0174 Hyundai, and in fact your vehicle may show both codes at the same time.

Symptoms

Possible sumptoms of OBD code P0171 Hyundai
You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.

Causes

Possible causes of OBD code P0171 Hyundai
A code P0171 Hyundai may mean that one or more of the following has happened: ?The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of “oiled” air filters may 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 downstream of the MAF sensor.

Possible Solutions

Possible solutions include: ?In the vast majority of cases, simply cleaning the MAF sensor does the trick. 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 all vacuum and PCV hoses, replace if necessary ?Check for a dirty fuel filter and proper fuel pressure


The OBD2 Code Information Be Applicable For Hyundai:

2013 Hyundai i30,2013 Hyundai i20,2013 Hyundai Santa Fe,2013 Hyundai Langdong,2013 Hyundai HB20X,2013 Hyundai HB20S,2013 Hyundai HB20,2012 Hyundai i40,2011 Hyundai ix35,2011 Hyundai ix20,2011 Hyundai i10,2011 Hyundai Verna,2011 Hyundai Sonata,2011 Hyundai Azera,2011 Hyundai Avante,2010 Hyundai Accent,2009 Hyundai ix55,2009 Hyundai i20,2009 Hyundai Sonata,2008 Hyundai i800,2008 Hyundai i30,2008 Hyundai i10,2007 Hyundai Veracruz,2007 Hyundai Elantra,2007 Hyundai Coupe,2006 Hyundai Getz,2005 Hyundai Tucson,2005 Hyundai Trajet,2005 Hyundai Terracan,2005 Hyundai Sonata,2005 Hyundai Santa Fe,2005 Hyundai Portico Concept,2005 Hyundai Matrix,2005 Hyundai HED 1 Concept,2005 Hyundai Grandeur,2005 Hyundai Getz,2005 Hyundai Coupe,2004 Hyundai HCD8 Concept,2004 Hyundai Elantra,2004 Hyundai E-Cubed Concept,2004 Hyundai Atos Prime,2004 Hyundai Accent,2003 Hyundai CCS Concept,2002 Hyundai HCD 7 Concept,2001 Hyundai HCD 6 Concept

 

Note:

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