Rick's Free Auto Repair Advice

Posts Tagged: P0443

P0443 fix: Purge Control Valve Circuit Malfunction

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction The key to diagnosing a P0443 is in its definition: Evaporative Emission Control System Purge Control Valve Circuit Malfunction. That means the computer has detected a circuit issue. That can be caused by an open in the purge valve solenoid windings, a short to ground in the valve’s windings, a bad or corroded electrical connector to the valve, or a wiring harness issue. If you really want to do a P0443 fix once, don’t automatically assume it’s a bad purge … Read More


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