2001 Ford Explorer Sport code: P0171 Bank 1 too lean Hello....
My 2001 Ford Explorer Sport 4x4 (133,000 miles) CEL (check engine Light) came on over the weekend.
ONE CODE came up, P0171 Bank 1 too lean.
Is this a bad Primary o2 sensor?
I believe that Bank 1 is the Driver's Side?
Any good places to buy a replacement o2 sensor?
Any other possibilitiesof why the CEL has come on?
Thanks everyone! |