P0430 on Ford vehicles The catalytic converter on bank 2 is not cleaning up the exhaust as well as it should

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Bulletins and campaigns Ford filed with NHTSA whose summary names P0430. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• TSB 23-2337 Service bulletin
  2023-10-31 · Engine And Engine Cooling
• Some 2022-2023 F-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to high sulfur content in the fuel. To correct the condition, follow the Service Procedure to remove sulfur from the catalytic converters.
• TSB 23-2425 Service bulletin
  2023-12-20 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
• This article supersedes TSB 23-2337 to update the Service Procedure and the causal part. Some 2022-2023 F-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to high sulfur content in the fuel. To correct the condition, follow the Service Proc
• TSB 24-2124 Service bulletin
  2024-04-26 · Power Train
• This article supersedes TSB 23-2425 to address revised software and update the Parts List. Some 2022-2023 F-150 hybrid vehicles equipped with a 3.5L PowerBoost engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to calibration and controls sensitivity. To correct the condition, follow the Servi
• TSB 25-2119 Service bulletin
  2025-03-26 · Unknown Or Other
• Some of the vehicles listed in the Model statement above may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM.
• TSB 25-2549 Service bulletin
  2025-11-06 · Electrical System
• This article supersedes TSB 25-2119 to update the vehicles affected, parts list, and Service Procedure. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM. This condition does n
• TSB 26-2216 Service bulletin
  2026-05-06 · Power Train
• This bulletin supersedes 25-2549. Reason for update: To add 2020 model year chassis cab vehicles. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM. This condition does not aff
• TSB 25-2348 Service bulletin
  2025-07-25 · Power Train
• Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0128, P0420, and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM.
• TSB 25-2382 Service bulletin
  2025-08-20 · Power Train
• Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM.
• 22M06 Service bulletin
  2023-01-26 · Fuel System, Diesel — Storage — Tank Assembly
• Certain 2019 Model Year Police Interceptor Utility Vehicles Equipped with a 3.7L Engine Catalytic Converter Extended Coverage In the affected vehicles, it may be possible that aggressive law enforcement driving maneuvers can result in an overheated catalytic converter, catalyst degradation, and an illuminated malfunction indicator light (MIL) with diagnostic trouble codes (DTCs) P0420 and/or P043
• TSB 18-2297 Service bulletin
  2018-10-01 · Engine And Engine Cooling — Exhaust System — Emission Control — Catalytic Convertor
• Some 2016-2018 Police Interceptor Sedan vehicles equipped with a 3.7L Twin independent Variable Camshaft Timing (TiVCT) engine may exhibit an illuminated MIL with DTC P0420 and/or P0430. Follow the Service Procedure steps to correct the condition.

A stored code names the test that failed, never the part that caused it. The record above is what Ford and its owners have filed about it; the code’s page across every make has the whole file.