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TuningBot DTC Database · v4.37.14

P128B Valve position control circuit - malfunction

1 manufacturer-specific interpretation across 1 manufacturer in the TuningBot DTC database.

P · PowertrainEngineOBD2
Brand pages:Honda

Honda

1 interpretation
P128B
Valve position control circuit - malfunction Honda · engine Data confidence 62%

The control module detected improper operation of the Valve position control. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Oil level
  • wiring
  • engine oil pressure sensor
  • rocker arm oil control valve

Related and nearby codes

How to read P128B

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

28B

Specific fault index within the subsystem.

Frequently asked questions about P128B

What does P128B mean?

Valve position control circuit - malfunction. The control module detected improper operation of the Valve position control. This is the manufacturer-specific definition used by Honda.

Is P128B generic or manufacturer-specific?

P128B is a manufacturer-specific code. In this database it is documented for: Honda. The same number can mean something different on other brands.

Can TuningBot remove P128B 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

ECU tuningStage 1 dyno results for Honda engines See the results →

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