Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
189
Specific fault index within the subsystem.
Frequently asked questions about P2189
What does P2189 mean?
System too lean at idle, bank 2. The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System).
Is P2189 generic or manufacturer-specific?
P2189 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2189 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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