Uncovering the P0446 on Your 2022 Kia Sportage
Your 2022 Kia Sportage has set a P0446 code — an EVAP vent control circuit malfunction. As the final model year for the fourth-generation Sportage (QL platform) before the NQ5 redesign, your compact SUV's 2.4L GDI engine uses a Canister Close Valve (CCV) to manage evaporative emissions. The PCM has detected a circuit-level electrical fault.
The QL Sportage's EVAP system is proven and well-understood. At three to four years old, the 2022 model is likely under Kia's generous warranty. Let's trace the evidence.
Symptoms to Watch For
- Check engine light on with P0446
- Fuel nozzle clicking off prematurely at the pump
- EVAP monitor not completing
- Possible faint fuel vapor smell
- May appear with P0441 or P0456
Ranked Causes
- Canister Close Valve (CCV) Malfunction (High Likelihood): The CCV solenoid can fail electrically from early wear. Located near the charcoal canister, it's the most common P0446 cause. Parts $45–$90, labor $80–$180.
- CCV Connector Corrosion (High Likelihood): Road moisture and salt corrode the CCV connector terminals over time. Repair costs $50–$140.
- Fuel Tank Pressure Sensor (FTPS) Issue (Medium Likelihood): The FTPS provides data that influences vent circuit diagnostics. Replacement runs $85–$220.
- Wiring Harness Damage (Medium Likelihood): Road debris and heat exposure can damage the CCV wiring. Repair costs $80–$260.
- Charcoal Canister Issue (Low Likelihood): Early canister degradation is uncommon on a three-year-old vehicle but possible with repeated fuel overfilling. Replacement costs $140–$310.
Diagnostic Steps
- Confirm P0446 with an OBD-II scanner
- Inspect the CCV connector for corrosion or water
- Test CCV resistance against Kia specifications
- Command the CCV with 12V — verify it clicks
- Check wiring continuity from the CCV to the PCM
- Test FTPS readings if CCV circuit is clean
Cost Breakdown
- CCV replacement: $125–$270
- Connector repair: $50–$140
- FTPS: $85–$220
- Wiring repair: $80–$260
- Diagnostic fee: $75–$135
Can I Drive With P0446?
Yes. P0446 doesn't affect your Sportage's 181-hp engine, 6-speed automatic, or AWD system. It's an emissions circuit code only.
Warranty Situation
Your 2022 Sportage should be within Kia's 5-year/60,000-mile basic warranty. The 10-year/100,000-mile powertrain warranty and 8-year/80,000-mile federal emissions warranty offer additional protection. Visit the dealer first.