EmissionsSeverity Low: usually safe to drive

P0443Evaporative Emission System Purge Control Valve Circuit

What it means

The ECU sees an electrical fault in the purge valve circuit.

Symptoms

Check engine light
Possibly a fuel smell
Usually no change in how the car drives

Common causes

Open or shorted purge valve
Wiring or connector fault
ECU driver fault

What to check first

Measure the purge valve resistance
Check supply and control
Run the actuator test and listen for clicking

Can I drive with P0443? Usually yes. P0443 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

Cases with P0443 (0)

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P0443: questions and answers

What does P0443 mean?

P0443: Evaporative Emission System Purge Control Valve Circuit. The ECU sees an electrical fault in the purge valve circuit.

What are the symptoms of P0443?

Check engine light. Possibly a fuel smell. Usually no change in how the car drives.

What causes P0443?

Open or shorted purge valve. Wiring or connector fault. ECU driver fault.

How do you diagnose P0443?

1. Measure the purge valve resistance 2. Check supply and control 3. Run the actuator test and listen for clicking

Can I drive with P0443?

Usually yes. P0443 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.