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TuningBot DTC Database · v4.37.15

P2A1B Injection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector)

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

P · PowertrainFuelOBD2

What P2A1B means

P2A1B
Injection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector) Generic · fuel Data confidence 65%

The control module judged the Injection Pump Fuel Metering Control E behaviour implausible for the current operating conditions.

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 P2A1B

P

Powertrain: engine, transmission and driveline systems.

2

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

A1B

Specific fault index within the subsystem.

Frequently asked questions about P2A1B

What does P2A1B mean?

Injection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector). The control module judged the Injection Pump Fuel Metering Control E behaviour implausible for the current operating conditions.

Is P2A1B generic or manufacturer-specific?

P2A1B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P2A1B 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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