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P0191 on the 2005 Ford Explorer

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

Nobody has written a description of this code yet.

Bulletins for this model year that name P0191
052622006-01-25. Service bulletin. MIL ON WITH DTC P0191 WITH OR WITHOUT VARIOUS DRIVABILITY SYMPTOMS AND/OR ADDITIONAL DTCS. *TT

1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.