EGR Sensor "C" Hoses Reversed
Ford · emissions
Data confidence94%
Ford documents P139A:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as egr sensor "c" hoses reversed. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Compare commanded and measured values
Check applicable OEM service information
Applies toFord gasoline-engine OBD applications|2024-2025 model years
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
39A
Specific fault index within the subsystem.
Frequently asked questions about P139A
What does P139A mean?
EGR Sensor "C" Hoses Reversed. Ford documents P139A:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as egr sensor "c" hoses reversed. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.
Is P139A generic or manufacturer-specific?
P139A is a manufacturer-specific code. In this database it is documented for: Ford. The same number can mean something different on other brands.
Can TuningBot remove P139A 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.
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU
Ford