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TuningBot DTC Database · v4.37.14

P0300 Random/Multiple Cylinder Misfire Detected

Generic (OBD-II) interpretation + 1 manufacturer-specific in the TuningBot DTC database.

P · PowertrainIgnitionDriveability: LimitedOBD2
Brand pages:Ford

Generic (OBD-II) interpretation

P0300
Random/Multiple Cylinder Misfire Detected Generic · ignition Data confidence 90%

The control module detected crankshaft speed fluctuations consistent with combustion misfire (Random/Multiple Cylinder).

Symptoms

  • Possible rough running and loss of power
  • MIL illuminated or flashing under load
  • Possible increased emissions

Possible causes

  • Spark plug(s)
  • HT lead(s)
  • injector(s)
  • ignition coil(s)
  • low compression
  • wiring

Recommended checks

  • Read misfire counters per cylinder
  • Check freeze frame conditions
  • Swap-test coil/plug between cylinders where applicable
  • Check injector operation and cylinder balance
  • Perform compression test if electrical checks pass

Manufacturer-specific interpretations

Ford

1 interpretation
P0300:00
general and specific cylinder misfire Ford · ignition Data confidence 94%

Ford documents P0300:00 (no sub type information) for its 2024-2025 gasoline-engine OBD monitor strategy as general and specific cylinder misfire. This three-byte interpretation is application-specific and identifies the detected monitor condition rather than a confirmed failed component.

Recommended checks

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information
Applies to Ford gasoline-engine OBD applications|2024-2025 model years

Related and nearby codes

How to read P0300

P

Powertrain: engine, transmission and driveline systems.

0

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

300

Specific fault index within the subsystem.

Frequently asked questions about P0300

What does P0300 mean?

Random/Multiple Cylinder Misfire Detected. The control module detected crankshaft speed fluctuations consistent with combustion misfire (Random/Multiple Cylinder).

Is P0300 generic or manufacturer-specific?

P0300 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Ford. Always read it in the context of your vehicle.

Can TuningBot remove P0300 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 Ford engines See the results →

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