Question about 2004 Jeep Grand Cherokee - 4.7L V8 - Catalytic Direct-fit Catalytic Converters - 49-State Legal
Code indicates P0171: A lean air/fuel mixture has been indicated by an abnormally rich correction factor.
Check for vacuum leaks, Bad intake sensors, worn injectors, Restricted intake air, bad EGR valve.
Posted on May 09, 2013
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Posted on Jan 02, 2017
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