P0440 on Your 2022 Chevrolet Camaro: Case File
Your 2022 Camaro has flagged a P0440 code — an EVAP system malfunction. Whether you're driving the 2.0T, 3.6L V6, LT1, or ZL1, the EVAP system is largely the same across trim levels. As one of the final Camaro model years, the system is mature and well-understood. Let's crack the case.
Symptoms
- Check engine light on
- Possible fuel odor
- Marginal fuel economy decrease
- Fueling issues at the pump
- Emissions test failure
Performance is 100% unaffected. Every horsepower is still there.
Causes
- Gas Cap — Check first. Estimated repair: $5–$20.
- Purge Valve Solenoid — Common on GM engines, especially turbocharged variants. Estimated repair: $70–$180.
- Vent Valve Solenoid — GM's well-known failure component. Estimated repair: $80–$200.
- Vapor Hoses — Heat from the V8 or turbo plumbing can degrade rubber lines. Estimated repair: $45–$140.
- FTP Sensor — Age-related drift. Estimated repair: $95–$240.
Diagnostic Approach
- Gas cap check and replacement
- Full EVAP code scan
- Solenoid testing
- Smoke test
- Visual hose inspection
Costs
- Gas cap: $5–$20
- Purge valve: $70–$180
- Vent valve: $80–$200
- Vapor hoses: $45–$140
- FTP sensor: $95–$240
- Diagnostic: $80–$150
Performance?
Zero impact. P0440 is emissions-only. Your Camaro is just as fast and responsive.
Repair Difficulty
Gas cap is trivial. The purge valve location varies by engine — it's more accessible on the 2.0T and V6 than the V8 models. The vent valve near the fuel tank is a moderate DIY job on all trims.