P0440 on the All-New 2022 Nissan Frontier
The 2022 Nissan Frontier marks a complete redesign, and if your new truck has triggered a P0440 code, the investigation points to the EVAP system. The new 3.8L V6 with 9-speed automatic features updated EVAP components on a new platform.
Symptoms
- Check engine light on
- Possible fuel odor
- Slight fuel economy decrease
- Fueling issues
- Emissions test failure
Your Frontier drives and tows normally. The V6 and 9-speed are unaffected.
Causes
- Gas Cap — First check. Estimated repair: $5–$25.
- Purge Volume Control Valve — Nissan's PVCV on the V6. Estimated repair: $80–$205.
- Canister Vent Control Valve — Known Nissan failure point. Estimated repair: $90–$220.
- Leak Detection Pump — Self-test pump. Estimated repair: $145–$350.
- First-Year Issue — New platform may have assembly or calibration issues. Estimated repair: $0 (warranty).
Diagnosis
- Check gas cap
- Check for Nissan TSBs for 2022 Frontier
- Full EVAP scan and component testing
- Smoke test if needed
Costs
- Gas cap: $5–$25
- PVCV: $80–$205
- Vent control valve: $90–$220
- Leak detection pump: $145–$350
- Diagnostic: $80–$150
Warranty: Check your mileage. If under 36,000 miles, Nissan covers the repair.
Driving Impact
None. Safe to drive, tow, and use off-road.
Repair Approach
If under warranty, go to the dealer. Otherwise, the Frontier is a DIY-friendly truck with good component access.