P1442: Evaporative Emission Control System Leak Detected

MediumPowertrainEVAP System

What does P1442 mean?

P1442 is a diagnostic trouble code indicating "Evaporative Emission Control System Leak Detected". This code relates to your vehicle's evap system and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

  • Check engine light (MIL) illuminated on dashboard
  • Fuel smell near the vehicle
  • Difficulty filling fuel tank

Estimated repair cost

Typical range in Australia (parts + labour)

$100 – $400 AUD

Common causes

  • Faulty evap system component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This code sits in an engine peripheral, typically emissions or forced induction. It will not take braking or steering away, but it can put the car into limp mode, cost you fuel and fail a roadworthy. Book it in rather than clearing it and hoping.

Get a diagnosis for YOUR car

Code P1442 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

P1441Evaporative Emission Control (EVAP) System Leak
P1443Evaporative Emission Control System Control Valve
P1440Purge Valve Stuck Open
P1444Purge Flow Sensor Circuit Low Input