1998 Ford E150 6-Cylinder Automatic: Resolved P0174, P0171, P0301, and P01131 Codes After Spark Plug Replacement

Model: 1998 E150 6cyl automatic Fault Code: P0171 Posted: 2010-09-22 19:42

My check engine light is on. I recently replaced the spark plugs, which helped resolve some of the codes, but I still have P0174, P0171, P0301, and P01131. A sales associate at an auto parts store suggested I install a Mass Air Flow (MAF) sensor. While this is a common fix for similar issues, I'm seeking advice on whether this is actually necessary or if there are other potential causes for these specific diagnostic trouble codes in my 1998 Ford E150 with a 6-cylinder automatic transmission.