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TuningBot DTC Database · v4.37.15

P28AF Cylinder 8 Ion Current Sense Circuit High

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P28AF means

P28AF
Cylinder 8 Ion Current Sense Circuit High Generic · engine Data confidence 65%

The control module detected that the signal in the Cylinder 8 Ion Current Sense circuit stayed above the expected operating range.

Related and nearby codes

How to read P28AF

P

Powertrain: engine, transmission and driveline systems.

2

Generic SAE-standard code: same meaning on every make.

8AF

Specific fault index within the subsystem.

Frequently asked questions about P28AF

What does P28AF mean?

Cylinder 8 Ion Current Sense Circuit High. The control module detected that the signal in the Cylinder 8 Ion Current Sense circuit stayed above the expected operating range.

Is P28AF generic or manufacturer-specific?

P28AF is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P28AF 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

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