P0456 on Your 2022 Camaro: A Minor Distraction
Your 2022 Camaro (6th generation) has flagged P0456—a very small EVAP leak. From the 2.0L turbo to the 6.2L LT1 V8 SS and supercharged ZL1, GM's EVAP system is shared. At 3–4 years old, check warranty status first.
Symptoms
- Check engine light on
- P0456 stored
- No performance changes whatsoever
- All driving modes work normally
Top Causes
- Gas Cap Seal (High Likelihood): Worn or loose. $0–$15 (warranty may cover).
- Vent Valve Solenoid (High Likelihood): GM's EVAP weak point. $0–$220 (warranty may cover).
- Purge Solenoid (Medium Likelihood): Performance engine heat. $0–$220 (warranty may cover).
- EVAP Hose (Medium Likelihood): Heat-related aging. $0–$250 (warranty may cover).
- FTP Sensor (Low Likelihood): Sensitivity drift. $120–$260.
Next Steps
- Reseat gas cap
- Check warranty—GM 3yr/36k runs through 2025
- Dealer appointment if covered
- Gas cap replacement and code clear if not
Costs
- Under warranty: $0
- Gas cap: $10–$15
- Vent valve solenoid: $80–$220
- Purge solenoid: $80–$220
Can I Track My Camaro?
Yes. P0456 has zero impact on the Camaro's performance, whether you're running an SS at the drag strip or a ZL1 on a road course. No power, handling, or cooling effects.
Warranty
GM's 3yr/36k runs through 2025. Federal emissions (8yr/80k) covers EVAP through 2030. Note: the Camaro was discontinued after 2024, but warranty coverage continues normally.