OBD-II code · Powertrain (generic)
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.
Is it safe to drive with P0444?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPurge solenoid winding open
- PossibleWiring or connector fault
- Less likelyPin pushed back out of connector body
Symptoms
- Check engine light on
- Possible smell of fuel near tank or engine bay
- Failed emissions inspection
- Loose-cap warning may appear
Repair at a glance
- Difficulty
- Easy
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.3–1.5 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Evap Purge Valve, Evap Purge Valve Wiring
Related codes
- P0441Evaporative Emission System Incorrect Purge Flow
- P0442Evaporative Emission System Leak Detected (Small Leak)
- P0443Evaporative Emission System Purge Control Valve Circuit
- P0445Evaporative Emission System Purge Control Valve Circuit Shorted
- P0446Evaporative Emission Vent Control Circuit Malfunction
- P0447Evaporative Emission System Vent Control Circuit Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.