P0444 on 2006-2022 Hyundai Accent — Evaporative Emission System Purge Control Valve Circuit Open
1 vehicles · 1 makes · $80-$450 repair
How to diagnose and fix P0444: most-reported vehicles
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Hyundai Accent · 2006–2022
The canister purge control solenoid valve (PCSV) on the Accent sticks partially open or fails to hold vacuum, so fuel vapor flows into the intake at the wrong time. The classic owner pattern is a check engine light with P0441 (incorrect purge flow) plus the engine stalling or stumbling immediately after topping off at the pump, and a slightly rich, rough idle. Hyundai Forums threads on this go back years and turn up a second cause besides the valve itself: outdated ECM software, addressed by a Hyundai service campaign software update, which is sometimes the entire fix. The other frequently missed contributors are a saturated charcoal canister (from repeatedly overfilling the tank) and cracked purge lines.
Common Symptoms
- Check engine light with EVAP purge codes
- Engine stalls or stumbles right after refueling
- Rough or hunting idle
- Failed emissions/smog test
- Slight fuel smell
How to Fix
Scan and confirm the code, then smoke-test the EVAP system for cracked hoses before buying parts. If the valve is at fault, replace it with the genuine Hyundai purge control solenoid - forum owners specifically warn that aftermarket valves have the wrong coil resistance (roughly 20 ohms vs about 30 ohms OEM), which throws an EVAP circuit code and leaves the refueling stall unfixed. Ask the dealer to check for an outstanding ECM software update campaign for your VIN, which can clear P0441 with no parts at all. Replace a fuel-saturated charcoal canister and stop clicking the pump past the first shutoff.
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Sources for this issue (3)
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P0444 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 P0444 mean?
P0444 stands for "Evaporative Emission System Purge Control Valve Circuit Open." The PCM detects an open circuit in the EVAP purge control valve circuit—no current path when the purge valve is commanded on.
What are the most common causes of P0444?
The most common causes of P0444 are: Open/broken wire in the purge valve circuit, Failed purge solenoid (open winding), Disconnected or corroded connector, Blown fuse feeding the circuit, Faulty PCM driver (rare). The specific cause varies by vehicle.
How much does it cost to fix P0444?
Repair costs for P0444 range from $80 to $450, depending on the vehicle and root cause.
Which vehicles are affected by P0444?
Au7o has documented P0444 across 1 vehicle models from 1 manufacturers: Hyundai.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.