Some 2010 – 2012 Ford E-Series, F-150, Expedition and F-Super Duty, and 2010-2011 Ranger vehicles, or 2010-2012 Lincoln Navigator equipped with the 4.6L, 5.0L, 5.4L, 6.2L or 6.8L engines may exhibit DTCs P2270 or P2272.
- Using the integrated diagnostic system (IDS) scan tool or equivalent, retrieve all continuous memory DTCs. If either of these DTCs are present, proceed to Step 2.
- Replace only the affected Catalyst Monitor Sensor as indicated by the DTC observed (P2270 – Bank 1; or P2272 – Bank 2). Refer to the workshop manual, section 303-14.