OBD-II code · Powertrain (generic)
P0443 Evaporative Emission System Purge Control Valve Circuit
Electrical fault in the EVAP purge solenoid circuit. The ECU detects an open, shorted, or out-of-range condition on the purge valve driver.
Is it safe to drive with P0443?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPurge solenoid electrically failed
- PossibleWiring/connector fault
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, Purge Valve Wiring
Related codes
- P0440Evaporative Emission Control System Malfunction
- P0441Evaporative Emission System Incorrect Purge Flow
- P0442Evaporative Emission System Leak Detected (Small Leak)
- P0444Evaporative Emission Purge Control Valve Circuit Open
- P0445Evaporative Emission System Purge Control Valve Circuit Shorted
- P0446Evaporative Emission Vent Control Circuit Malfunction
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.