P228C
8 owner reports and 56 manufacturer filings across 23 model years from Buick, Cadillac, Chevrolet, GMC.
Where P228C shows up
Source: NHTSA manufacturer communications and complaintsA model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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P228C by make
The same record, one make at a time: the model years, bulletins and owner reports that name P228C on that maker’s vehicles.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
Diagnostic codes P228C (Fuel Pressure Regulator 1 Exceeded Control Limits) and P0089 (Fuel Pressure Regulator 1 Performance) were present
The vehicle was taken to a dealer and DTC: P228C, P0089, and P006C were retrieved, and the contact was informed that the fuel pump and fuel injectors needed to be replaced
56 manufacturer filings name P228C. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P228C.
- N252524761 Service campaign2026-01-28 · Unknown Or Other
- Certain vehicles may set a Malfunction Indicator Light. Additionally, the vehicle may set DTCs P228C, P0089, and/or P006C. Dealers are to reprogram the Engine Control Module.
- N252524760 Service campaign2026-01-28 · Unknown Or Other
- Certain vehicles may set a Malfunction Indicator Light. Additionally, the vehicle may set DTCs P228C, P0089, and/or P006C. Dealers are to reprogram the Engine Control Module.
- PIP6061 Service bulletin2025-05-01 · Fuel/Propulsion System
- This Preliminary information communicates there could be an electrical connection concerns at the high pressure fuel pump, and may set any combnation of diagnostic trouble codes, P0089 P0090 P00C6 P163A and / or P228C. The technician should inspect the terminals and manipulate the harness to see if any of the codes can be duplicated. Replace or repair connector or terminals as needed.
- 24-NA-106 Service bulletin2024-09-25 · Fuel/Propulsion System
- This service bulletin provides a procedure to check the engine and bank 2 fuel injector harness to determine if its the cause of the customers concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTCs P00C6, P312B, P217D, P2149, P312C, P01BF, P2CA0, P216D, P2155, P228C, and/or U101C Set, due to water intrusion into the electrical connector.
- 18NA072 Service bulletin2020-03-04 · Engine
- This technical bulletin provides a procedure to inspect the fuel system and replace the high pressure fuel pump if faulty for a Reduced Engine Power, MIL On, DTC P228C condition.
- 18NA072 Service bulletin2018-04-13 · Fuel System, Gasoline
- This technical bulletin provides a procedure to inspect the fuel system and replace the high pressure fuel pump if faulty for a Reduced Engine Power, MIL On, DTC P228C condition.
What P228C means
Source: SAE J2012 / OBD-IIP228C sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P228C
Source: NHTSA files and the OBD-II standardCan I keep driving with P228C stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.