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TuningBot DTC Database · v4.37.15

P1129 Honda - MAP sensor - signal higher than expected

Manufacturer-specific interpretation for Honda. All interpretations of P1129

P · PowertrainEngineOBD2

What P1129 means

P1129
MAP sensor - signal higher than expected Honda · engine Data confidence 80%

The control module detected that the MAP sensor value was higher than expected for the current conditions. This is the manufacturer-specific definition used by Honda.

Possible causes

  • Vacuum leaks
  • wiring
  • MAP sensor

Related and nearby codes

How to read P1129

P

Powertrain: engine, transmission and driveline systems.

1

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

129

Specific fault index within the subsystem.

Frequently asked questions about P1129

What does P1129 mean?

MAP sensor - signal higher than expected. The control module detected that the MAP sensor value was higher than expected for the current conditions. This is the manufacturer-specific definition used by Honda.

Is P1129 generic or manufacturer-specific?

P1129 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 P1129 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 tuningStage 1 dyno results for Honda engines See the results →

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