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TuningBot DTC Database · v4.37.14

P2180 System Too Rich Off Idle Bank 2

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

P · PowertrainFuelOBD2

What P2180 means

P2180
System Too Rich Off Idle Bank 2 Generic · fuel Data confidence 85%

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

Symptoms

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

Possible causes

  • Fuel pressure
  • injectors
  • air intake restricted / Wiring
  • short to ground
  • HO2S
  • 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 P2180

P

Powertrain: engine, transmission and driveline systems.

2

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

180

Specific fault index within the subsystem.

Frequently asked questions about P2180

What does P2180 mean?

System Too Rich Off Idle Bank 2. The control module detected that the air-fuel mixture stayed richer than the target despite full corrective control (System).

Is P2180 generic or manufacturer-specific?

P2180 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2180 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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