Emissions
Code P0446
EVAP Vent Control Circuit
Plain English Meaning:EVAP vent valve malfunction
✅
Green: Safe to Drive
Not urgent
P0446 Symptoms
- •Check engine light fuel odor
Most Common Causes of P0446
1Blocked vent valve faulty wiring
P0446 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
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Parts for P0446 Repair
Common replacement parts for emissions codes. (Paid links)
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