EGR valve : Incorrect position (closed too far) (After sales)
PSA · emissions
Data confidence72%
The control module detected the fault condition "Incorrect position (closed too far) (After sales)" for the EGR valve. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
EGR valve : Position incorrect (Closed too far) (APV)
PSA · emissions
Data confidence72%
The control module detected the fault condition "Position incorrect (Closed too far) (APV)" for the EGR valve. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
2B4
Specific fault index within the subsystem.
Frequently asked questions about P12B4
What does P12B4 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected the fault condition "Incorrect position (closed too far) (After sales)" for the EGR valve. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Is P12B4 generic or manufacturer-specific?
P12B4 is a manufacturer-specific code. In this database it is documented for: PSA. The same number can mean something different on other brands.
Can TuningBot remove P12B4 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.
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