Trouble codes › P0443

P0443 Evaporative Emission System Purge Control Valve "A" Circuit

EVAP

P0443 means there's an electrical fault in the EVAP purge valve circuit.

The engine computer found an electrical fault in the purge valve circuit: open, shorted, or not responding.

Can I keep driving? Yes, for now.

Safe to drive. It affects emissions.

Common causes

  1. A failed purge valve solenoid
  2. An unplugged or corroded connector
  3. Damaged wiring
  4. A blown fuse

Symptoms

  • Check-engine light
  • Usually nothing else

What to check first

  1. Check the purge valve connector and wiring.
  2. Measure the solenoid's resistance against spec.
  3. Check for power at the connector with the key on.
  4. Replace the valve if it's open or shorted.

What does P0443 mean on your vehicle?

The likely cause depends on your engine. iRepair researches your exact year, make, model and engine (service bulletins, recalls and owner reports) and tells you what to check first. Your first 3 questions are free.

Ask iRepair about P0443

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Related codes

General guidance for P0443 on most vehicles. Some makers use the same code a little differently; confirm in the service information for your vehicle, put safety first, and see a professional when in doubt.