P0443

EVAP System Purge Control Valve A Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

Check Engine Light Is On
Increased fuel consumption
Smell of gasoline in the cabin

Causes

Open or short circuit in the purge valve wiring harness
Purge solenoid valve malfunction
Problems with the engine control unit (ECU)
Corrosion of contacts or connectors

How to Fix

Check the wiring harness and purge valve connectors for damage.
Check the resistance of the purge valve (should be within 20-30 Ohms)
Check the power supply to the valve when the ignition is turned on
Replace the purge valve if a fault is detected
Clean or replace connectors if there is corrosion.

Related codes

P0440 P0442 P0449