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TuningBot DTC Database · v4.37.15

P2150 Injector - group B, supply voltage - circuit low

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

P · PowertrainFuelOBD2

What P2150 means

P2150
Injector - group B, supply voltage - circuit low Generic · fuel Data confidence 85%

The control module detected that the signal in the Injector - group B, supply voltage circuit stayed below the expected operating range.

Symptoms

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

Possible causes

  • Wiring short to ground
  • engine control (EC) relay
  • injector

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 P2150

P

Powertrain: engine, transmission and driveline systems.

2

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

150

Specific fault index within the subsystem.

Frequently asked questions about P2150

What does P2150 mean?

Injector - group B, supply voltage - circuit low. The control module detected that the signal in the Injector - group B, supply voltage circuit stayed below the expected operating range.

Is P2150 generic or manufacturer-specific?

P2150 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2150 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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