The control module detected improper operation of the Cylinder 5 Ion Current Sense circuit.
TuningBot DTC Database · v4.37.15
P28A0 Cylinder 5 Ion Current Sense Circuit
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P28A0 means
Related and nearby codes
How to read P28A0
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 P28A0
What does P28A0 mean?
Cylinder 5 Ion Current Sense Circuit. The control module detected improper operation of the Cylinder 5 Ion Current Sense circuit.
Is P28A0 generic or manufacturer-specific?
P28A0 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P28A0 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
