The control module detected a fault associated with the Fuel Rail Pressure Malfunction Positive Pressure Deviation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
TuningBot DTC Database · v4.37.15
P1143 Dodge - Fuel Rail Pressure Malfunction Positive Pressure Deviation
Manufacturer-specific interpretation for Dodge. All interpretations of P1143
What P1143 means
Related and nearby codes
How to read P1143
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1143
What does P1143 mean?
Fuel Rail Pressure Malfunction Positive Pressure Deviation. The control module detected a fault associated with the Fuel Rail Pressure Malfunction Positive Pressure Deviation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
Is P1143 generic or manufacturer-specific?
P1143 is a manufacturer-specific code. In this database it is documented for: Dodge. The same number can mean something different on other brands.
Can TuningBot remove P1143 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
