Question about Chevrolet 1500
HI the DTCs you listed P0171 P0174 are lean fuel trim codes. I see alot of faulty O2 sensor cause these to set along with leaking intake gaskets and fuel pumps. Without being able to see actual data from the trucks system its impossible to pin point the cause I can only give what issues we see the most of
Posted on Aug 27, 2010
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Posted on Jan 02, 2017
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