P0444
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.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: easy
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Common causes
Ordered by how often each turns out to be the cause.
- Purge solenoid winding openCommon
- Wiring or connector faultPossible
- Pin pushed back out of connector bodyLess likely
Parts involved
- EVAP Purge Valve
- EVAP Purge Valve Wiring
P0444 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.