P0443 on Ford: How to Diagnose & Fix
Evaporative Emission Control System Purge Control Valve Circuit
1 Ford model · 1 documented issue · $80-$250 repair
P0443 on Ford by model: symptoms, diagnosis and fix
The 2012-2018 Ford Focus with the 2.0L GDI engine experiences frequent canister purge valve (CPV) failures that cause rough idle, stalling, difficulty starting (especially after refueling), and fuel-related DTCs. The purge valve sticks open, allowing fuel vapors to flood the intake manifold at inappropriate times. Ford recalled 2012-2018 Focus cars with the 2.0L GDI and 2.0L GTDI (ST) engines under safety recall 18V735 (Ford 18S32) because a malfunctioning CPV can create excessive vacuum in the fuel vapor system and stall the engine; follow-up recalls 19V515 (Ford 19S22) and 26V369 (Ford 26S40) cover cars whose PCM update was missed or done incorrectly. The problem affects both manual and automatic (PowerShift) transmission models.
Common Symptoms
- Rough idle or engine surging at idle
- Engine stalling after starting, especially after refueling
- Difficulty starting the engine (extended crank time)
- Check engine light with EVAP system codes
- Hesitation during acceleration from a stop
How to Fix
First check the VIN for open recalls 18V735 (Ford 18S32) and 26V369 (Ford 26S40), under which dealers repair the purge system at no charge. Clear all stored codes after replacement and drive through one complete drive cycle to verify the fix.
Sources for this issue (4)
P0443 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0443 mean on a Ford?
P0443 stands for "Evaporative Emission Control System Purge Control Valve Circuit." This is an emissions (EVAP) code. The evaporative emission system captures gasoline vapors from the fuel tank and routes them to the engine to be burned, instead of letting them escape into the air; the purge control valve opens and closes to let those stored vapors into the intake at the right times. P0443 means the engine computer detected an electrical fault in the purge valve (purge solenoid) circuit — such as an open, short, or out-of-range signal. It generally won't affect how the car drives, but it will turn on the check engine light and can cause an emissions test failure. On Ford it is documented across 1 model: Focus.
What are the most common causes of P0443?
The most common causes of P0443 are: Failed EVAP purge control valve/solenoid, Damaged wiring or corroded connector at the purge valve, Short to power or ground in the purge circuit, Open circuit or broken wire to the solenoid, Blown fuse or power-supply fault to the valve, Connector water intrusion or corrosion, Faulty engine control module driver (less common). The specific cause varies by vehicle.
How much does it cost to fix P0443 on a Ford?
Published repair estimates on Ford range from $80 to $250 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0443 on a different make?
View P0443 across all makes →Join 700+ subscribers following Au7o for vehicle insights and updates.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.