2022 Nissan Rogue P0440: EVAP System Diagnosis Guide

P0440 on Your 2022 Nissan Rogue: The Investigation

Your 2022 Nissan Rogue has flagged a P0440 code, leading our detective work to the EVAP system. The Rogue's 1.5L VC-Turbo three-cylinder engine pairs with a modern EVAP system featuring Nissan-specific components. Let's uncover the cause.

Symptoms

• Check engine light on
• Possible fuel odor
• Slight MPG decrease
• Fueling difficulties
• Emissions failure

Your Rogue drives normally. P0440 does not affect the VC-Turbo or CVT.

Causes Ranked

1. Gas Cap — Loose or worn. Estimated repair: $5–$25.
2. Purge Volume Control Valve — Common Nissan failure. Estimated repair: $80–$200.
3. Canister Vent Control Valve — Located near the charcoal canister. Estimated repair: $85–$220.
4. Leak Detection Pump — Nissan's EVAP self-test component. Estimated repair: $145–$345.
5. Vapor Line Leak — Heat and age can cause cracks. Estimated repair: $40–$130.

Diagnosis

1. Gas cap check and replacement
2. Full EVAP code scan
3. Solenoid and pump testing
4. Smoke test
5. Visual hose inspection

Costs

• Gas cap: $5–$25
• PVCV: $80–$200
• Vent control valve: $85–$220
• Leak detection pump: $145–$345
• Vapor line: $40–$130
• Diagnostic: $80–$150

Safe to Drive?

Yes. No performance or safety concerns whatsoever.

DIY Feasibility

Gas cap is trivial. The PVCV is moderately accessible on the VC-Turbo engine. Components near the fuel tank require lifting the vehicle. Check if warranty still applies first.