Question about Ford Mustang
Hi, DTCs P0171 and P0174 indicate air/fuel ratio is correcting rich for an overly lean condition. DTCs P0172 and P0175 indicate air/fuel ratio is correcting lean for an overly rich condition. Possible causes are:
LEAN DRIVEABILITY SYMPTOMS: MAF SENSOR CONTAMINATION
MAF sensor is the most likely source of code....
Posted on Apr 03, 2011
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Posted on Jan 02, 2017
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