TSB 21-2063

Some 2016-2019 Police Interceptor Sedan vehicles equipped with a 3.7L twin independent variable camshaft timing (Ti-VCT) engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P0420 and/or P0430. This may be due to a damaged catalytic converter. To correct the condition, follow the Service Procedure to replace the catalytic converter and reprogram the powertrain control module (PCM).