Tracking P0456 on Your 2019 Rogue
Your 2019 Rogue (2nd generation) has triggered P0456—a very small EVAP leak at 0.020 inches. The compact SUV's 2.5L four-cylinder uses Nissan's EVAP system with the unique leak detection pump. At 6–7 years old, age-related component wear is the primary concern, but emissions warranty may still apply.
Evidence
- Check engine light on
- P0456 stored
- No performance symptoms
- Gas cap may show wear
- Emissions test failure likely
Suspects
- Gas Cap Seal (High Likelihood): Six years of wear. $10–$15.
- EVAP Leak Detection Pump (High Likelihood): Nissan's known failure point. Diaphragm degrades with age. $180–$300.
- Purge Volume Control Valve (Medium Likelihood): Age-related solenoid wear. $120–$220.
- Canister Close Valve (Medium Likelihood): Nissan's vent valve. $130–$240.
- EVAP Hose Deterioration (Low Likelihood): Rubber aging. $100–$220.
Diagnostic Steps
- Replace gas cap ($10–$15)
- Clear code and drive 50+ mixed miles
- Test leak detection pump if code returns
- Check PVCV and canister close valve
- Smoke test for stubborn leaks
Costs
- Gas cap: $10–$15
- Leak detection pump: $180–$300
- PVCV: $120–$220
- Canister close valve: $130–$240
- EVAP hose: $100–$220
Can I Drive?
Yes. P0456 has zero safety or performance impact on your Rogue.
Warranty and DIY
Nissan's 3yr/36k expired around 2022. Federal emissions (8yr/80k) covers EVAP through 2027. Gas cap is easy. Nissan's leak detection pump requires some effort but is documented for the 2nd-gen Rogue platform.