U0306Software incompatibility - injector control module
Generic (OBD-II) interpretation in the TuningBot DTC database.
U · NetworkFuelOBD2
What U0306 means
U0306
Software incompatibility - injector control module
Generic · fuel
Data confidence78%
The control module detected a fault associated with the Software incompatibility - injector control module circuit or function; the stored code identifies the affected component rather than a single failure mode.
Symptoms
MIL illuminated
Possible rough running or misfire
Possible increased fuel consumption
Possible causes
Injector electrical or mechanical fault
Wiring or connector fault
Fuel supply fault
Air leak causing mixture deviation
Recommended checks
Read fuel trim / mixture adaptation values
Check injector circuits and compare cylinder balance
Generic SAE-standard code: same meaning on every make.
306
Specific fault index within the subsystem.
Frequently asked questions about U0306
What does U0306 mean?
Software incompatibility - injector control module. The control module detected a fault associated with the Software incompatibility - injector control module circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is U0306 generic or manufacturer-specific?
U0306 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U0306 at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U0306 is removable in your case.
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