Some 2013-2014 Lincoln MKT Livery and MKS vehicles equipped with a 3.5L twin independent variable camshaft timing (Ti-VCT) or 3.7L Ti-VCT engine and built on or before April 25, 2014 may exhibit a MIL on with DTC P0420 and/or P0430.
If the afore-mentioned DTC(s) are present, replace the affected catalytic converter. Reprogram the PCM using release 90.02 or higher.