No. 4 cylinder : Injecteur n'injecte pas assez ou mauvaise compression cylindre
PSA · engine
Data confidence72%
The control module detected the fault condition "Injecteur n'injecte pas assez ou mauvaise compression cylindre" for the No. 4 cylinder. 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.
No. 4 cylinder : The injector is not injecting enough or poor cylinder compression
PSA · fuel
Data confidence72%
The control module detected the fault condition "The injector is not injecting enough or poor cylinder compression" for the No. 4 cylinder. 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.
Correction of injector flow rate cylinder 4 : Injector jammed closed or cylinder problem
PSA · fuel
Data confidence72%
The control module detected that the Correction of injector flow rate cylinder 4 is jammed or locked. Documented for the Siemens SID 803 injection ECU (DW10BTED4 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.
2AB
Specific fault index within the subsystem.
Frequently asked questions about P12AB
What does P12AB mean?
Diagnostic Trouble Code (3 interpretations). The control module detected the fault condition "Injecteur n'injecte pas assez ou mauvaise compression cylindre" for the No. 4 cylinder. 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 P12AB generic or manufacturer-specific?
P12AB 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 P12AB 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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