Diagnostic article Generic OBD-II
P2284: Ford 6.0L ICP feedback exceeds commanded pressure
Ford's P2284 example checks actual injection-control pressure more than 3 MPa above command during running.
Read before applying this article
Documented application
Ford 2004 model-year 6.0L diesel OBD summary, revision August 7, 2003; the cited monitor and transmission implementation only.
The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.
P2284 is broadly an injection-control pressure sensor range/performance code. Ford's 2004 6.0L diesel implementation gives it a specific direction: actual ICP exceeds commanded ICP by 3.0 MPa for more than seven seconds while the engine is running.
A tracking error, not an absolute ceiling
Both requested and measured pressure are needed to understand this event. A pressure below the absolute high-pressure limit can still fail P2284 if it exceeds the current request by enough. Conversely, an elevated pressure that follows an elevated command answers a different diagnostic question.
The monitor requires acceptable ICP sensor status. P2285 and P2286 provide separate electrical range checks, and their presence can undermine a simple interpretation of the pressure display.
Preserve the direction
P2290 is the opposite tracking condition, where actual pressure is below command. P2288 checks an absolute running pressure ceiling. Keeping those distinctions prevents a generic ICP performance label from obscuring the controller's actual observation. The source does not isolate a regulator, pump or injector fault. Use the correct 6.0L pressure-control procedure to establish the cause, with appropriate high-pressure equipment and handling precautions.
Source and applicability
Ford 2004 model-year 6.0L diesel OBD summary, revision August 7, 2003; the cited monitor and transmission implementation only. Ford source, physical PDF pages 23, 24. The documented monitor explains the fault decision; vehicle-specific service information is still needed for connector identification and a complete repair procedure.
Article source documents
Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.
Original code reference
Dictionary definition
Injector Control Pressure Sensor Circuit Range/Performance
This definition retains its original catalog scope. The article above is limited to its explicitly documented application.
Reference scope
Generic OBD-II definition.
A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.
Definition source
- DTC Database: pinned community code definitions
Source checked · MIT