The control module detected that the signal in the Cylinder 11 Ion Current Sense circuit stayed below the expected operating range.
TuningBot DTC Database · v4.37.15
P28BA Cylinder 11 Ion Current Sense Circuit Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P28BA means
Related and nearby codes
How to read P28BA
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P28BA
What does P28BA mean?
Cylinder 11 Ion Current Sense Circuit Low. The control module detected that the signal in the Cylinder 11 Ion Current Sense circuit stayed below the expected operating range.
Is P28BA generic or manufacturer-specific?
P28BA is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P28BA 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
