P0420 on the 2014 Lincoln MKS
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.
| TSB-14-0102 | 2014-09-16. Service bulletin. FORD/LINCOLN: DIAGNOSTIC TROUBLE CODE (DTC) P0420 AND/OR P0430, THE MALFUNCTION INDICATOR LAMP (MIL), ON SOME VEHICLES, WILL BE ILLUMINATED AND THE POWERTRAIN CONTROL MODULE (PCM) WOULD BE REPROGRAM WITH LATEST CALIBRATION. MODEL 2013-2014 POLICE EXPLORER, TAURUS, MKT LIVERY, MKS. *PE |
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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.