Tracking the P0446 Code on Your 2022 Chevrolet Camaro
A P0446 code on your 2022 Camaro reveals a circuit malfunction in the EVAP vent control system. The PCM has detected the vent valve solenoid isn't responding electrically as commanded. This is a circuit fault—not a vapor leak—and it has no effect on your Camaro's performance capabilities.
The 2022 Camaro continues the sixth generation, nearing the end of its production run. Available with the 2.0L turbo, 3.6L V6, or 6.2L V8, these cars deliver driving excitement while the EVAP system quietly manages fuel vapors. With just three years of age, a component defect or connector issue is more likely than extensive wear.
What You've Observed
- Check engine light with P0446 stored in the PCM
- P0449 may appear alongside P0446
- Fuel filling difficulty at the pump
- EVAP readiness monitor won't set complete
- No loss of power, throttle response, or handling
Evidence Points to These Causes
For the 2022 Camaro, the suspect lineup includes:
- Vent Valve Solenoid Defect (High Likelihood): Even on a three-year-old car, the solenoid can have a premature coil failure or valve sticking issue. This is the most common P0446 cause across GM's lineup. Parts: $35–$70, labor: $80–$160.
- Electrical Connector Fault (High Likelihood): A loose, corroded, or poorly seated connector at the vent valve solenoid triggers intermittent circuit codes. The Camaro's low ride height increases road spray exposure. Repair: $50–$150.
- Wiring Damage from Road Debris (Medium Likelihood): The Camaro's low ground clearance means the underbody wiring is more vulnerable to road debris contact. Repair: $100–$250.
- Charcoal Canister Issue (Medium Likelihood): A contaminated or defective canister can affect vent circuit operation. Replacement: $130–$290.
- PCM Software Update (Low Likelihood): GM may have released updated EVAP calibrations for the late-production sixth-gen Camaro. Dealer reflash: $100–$180.
Diagnostic Approach
Scan for P0446 and P0449. Access the vent valve solenoid from underneath the rear of the Camaro. Inspect the connector for moisture or corrosion. Test solenoid resistance and verify operation with direct voltage. A quality scan tool with GM enhanced mode or GM's GDS2 provides bidirectional solenoid testing.
Warranty Check
Your 2022 Camaro may still be within GM's 3-year/36,000-mile bumper-to-bumper warranty depending on purchase date and mileage. The federal emissions warranty covers EVAP components for 8 years/80,000 miles through 2030. Check your warranty status before paying for repairs—this may be fully covered.
Final Report
The P0446 on your 2022 Camaro is a minor emissions code that has absolutely no bearing on the car's performance character. Your straight-line speed, cornering grip, and driving dynamics remain fully intact. The vent valve solenoid is the most common resolution, and warranty coverage likely makes this a free fix at your Chevrolet dealer.