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TuningBot DTC Database · v4.37.15

P2E6A System Too Lean During Cylinder Deactivation Bank 2

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

P · PowertrainFuelOBD2

What P2E6A means

P2E6A
System Too Lean During Cylinder Deactivation Bank 2 Generic · fuel Data confidence 65%

The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System).

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
  • Check fuel pressure
  • Inspect for intake or exhaust leaks

Related and nearby codes

How to read P2E6A

P

Powertrain: engine, transmission and driveline systems.

2

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

E6A

Specific fault index within the subsystem.

Frequently asked questions about P2E6A

What does P2E6A mean?

System Too Lean During Cylinder Deactivation Bank 2. The control module detected that the air-fuel mixture stayed leaner than the target despite full corrective control (System).

Is P2E6A generic or manufacturer-specific?

P2E6A is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2E6A 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

ECU tuningDyno-tested results by model and engine See the results →

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