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P0444 Powertrain

Evaporative Emission Purge Control Valve Circuit Open

The ECU has detected an open circuit in the purge solenoid control line — usually a broken wire, unplugged connector, or open coil winding.

Affected components

  • Evap purge valve
  • Evap purge valve wiring

Common causes

  • High likelihood: Purge solenoid winding open
  • Medium likelihood: Wiring or connector fault
  • Low likelihood: Pin pushed back out of connector body

Possible symptoms

  • Check engine light on
  • Possible smell of fuel near tank or engine bay
  • Failed emissions inspection
  • Loose-cap warning may appear

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • This code can affect emissions
  • A drive cycle may be required after repair

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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