Emissions
Code P0446
EVAP Vent Control Circuit
Plain English Meaning:EVAP vent valve malfunction
✅
Green: Safe to Drive
Not urgent
What You'll Notice (Symptoms)
- •Check engine light fuel odor
Most Common Causes
1Blocked vent valve faulty wiring
Verified Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Command vent valve test
Typical Fix Paths & Estimated Costs
Replace vent valve $150–$500
🛒 Parts for P0446 Repair
Common replacement parts for emissions codes (Paid links)
Paid links — we may earn a commission on purchases. Enter your vehicle make/model on eBay for exact fitment.
🚗 Find P0446 Parts for Your Vehicle
Select your vehicle for exact-fit emissions parts
↑ Select your vehicle to see exact-fit parts
Fair Pricing Guides
Check our database for average parts, labor, and expected repair costs before heading to a mechanic.