P0443 Evap Emission System Purge Control Valve Circuit

Code: P0443
Applies To: Most makes, generic code
Loose Cap Can Set It: Not named in our sources
Typical Fix: $210 to $251 at RepairPal

An electrical problem in the wiring or coil of the purge valve.
A shop confirms it with the carmaker's EVAP test and a smoke machine before replacing parts.
Usually yes for now, but get it fixed soon and check for open recalls.

What The Carmakers Call It

EVAP emission system purge control valve circuit, as printed by Volkswagen Group of America
Evaporative Emission System Purge Control Valve "A" Circuit, as printed by Ford Motor Company

Causes Named In Carmaker Bulletins

An open or shorted purge valve circuit (source)
A stuck purge valve on 2012 to 2018 Focus 2.0L, listed with P0443 in a safety recall (source)

No source ranks these by how often they happen, so they are listed as the bulletins give them.

Sources describe an electrical check. None ties P0443 to the gas cap.

What The Fix Costs

The usual part for this code is the purge valve. Published estimates put it at $210 to $251 at RepairPal. The full table with every source and date is on the cost page. A diagnosis first keeps you from paying for a part you did not need, which is why we price readiness monitors and smog check before the fix.

Getting The Light To Go Off

After the repair the light goes off once the EVAP test runs and passes on three drive cycles in a row, and the code is erased after 40 warm up cycles, per CARB. The test only runs under set conditions such as a fuel level between about 15 and 85 percent, so it can take days.