Solved - P0171 & P0174 codes. | Page 2 | Ford Explorer Forums - Serious Explorations

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Solved P0171 & P0174 codes.

Prefix for threads that contain problems that have been resolved, and there is an answer within the thread.
Understood

Were 171 and 174 the ONLY codes you had?
 






truck showed codes P0171 , system too lean , P0174 , system too lean. bank 1 and 2..... does anyone know what this means or have had the same issue? guy told me it was the oxygen sensors. thank you for your time.

jeff
I had a problem on my '05 Explorere XLT reading similar codes saying too lean, and oxygen sensors, even though they had been replaced, and were brand new. A very astute mechanic checked the wiring to the sensors, and found a bug fried to one of them. He cleaned the bug off, and the problem was solved!! Hope this helps!! Happy trails.
 






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