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TuningBot DTC Database · v4.37.14

P0268 Cylinder 3 Injector Circuit High

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

P · PowertrainFuelOBD2

What P0268 means

P0268
Cylinder 3 Injector Circuit High Generic · fuel Data confidence 90%

The control module detected that the signal in the Cylinder 3 Injector circuit stayed above the expected operating range.

Symptoms

  • MIL illuminated
  • Possible rough running or misfire
  • Possible increased fuel consumption

Possible causes

  • Wiring short to positive
  • injector
  • ECM

Recommended checks

  • Read fuel trim / mixture adaptation values
  • Check injector circuits and compare cylinder balance
  • Check fuel pressure
  • Inspect for intake or exhaust leaks

Related and nearby codes

How to read P0268

P

Powertrain: engine, transmission and driveline systems.

0

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

268

Specific fault index within the subsystem.

Frequently asked questions about P0268

What does P0268 mean?

Cylinder 3 Injector Circuit High. The control module detected that the signal in the Cylinder 3 Injector circuit stayed above the expected operating range.

Is P0268 generic or manufacturer-specific?

P0268 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0268 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.

Other file services

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