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TuningBot DTC Database · v4.37.15

P1442 Mazda - Evaporative emission (EVAP) system - system leak detected

Manufacturer-specific interpretation for Mazda. All interpretations of P1442

P · PowertrainEmissionsOBD2

What P1442 means

P1442
Evaporative emission (EVAP) system - system leak detected Mazda · emissions Data confidence 62%

The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) system - system. This is the manufacturer-specific definition used by Mazda.

Possible causes

  • Hose connection(s)
  • fuel tank filler cap leak
  • EVAP canister purge valve

Related and nearby codes

How to read P1442

P

Powertrain: engine, transmission and driveline systems.

1

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

442

Specific fault index within the subsystem.

Frequently asked questions about P1442

What does P1442 mean?

Evaporative emission (EVAP) system - system leak detected. The control module detected a condition consistent with a leak affecting the Evaporative emission (EVAP) system - system. This is the manufacturer-specific definition used by Mazda.

Is P1442 generic or manufacturer-specific?

P1442 is a manufacturer-specific code. In this database it is documented for: Mazda. The same number can mean something different on other brands.

Can TuningBot remove P1442 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 Mazda engines See the results →

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