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TuningBot DTC Database · v4.37.15

P1303 Honda - Cylinder Number 3 Random Misfire Detected

Manufacturer-specific interpretation for Honda. All interpretations of P1303

P · PowertrainIgnitionDriveability: LimitedOBD2

What P1303 means

P1303
Cylinder Number 3 Random Misfire Detected Honda · ignition Data confidence 80%

The control module detected crankshaft speed fluctuations consistent with combustion misfire (Cylinder Number 3 Random). This is the manufacturer-specific definition used by Honda.

Related and nearby codes

How to read P1303

P

Powertrain: engine, transmission and driveline systems.

1

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

303

Specific fault index within the subsystem.

Frequently asked questions about P1303

What does P1303 mean?

Cylinder Number 3 Random Misfire Detected. The control module detected crankshaft speed fluctuations consistent with combustion misfire (Cylinder Number 3 Random). This is the manufacturer-specific definition used by Honda.

Is P1303 generic or manufacturer-specific?

P1303 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 P1303 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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