OBD codes / P0456 / Nissan Rogue
P0456 on a Nissan Rogue
Evaporative Emission System Leak Detected (Very Small Leak)
All modern Rogues with EVAP monitoring.
What P0456 usually means on a Rogue
P0456 is the pinhole-leak version on the Rogue, caught by the sensitive monitor. Its tiny size makes a smoke test the practical way to find it. The gas cap seal and Nissan's vent and purge valves are the usual sources, plus hairline hose cracks. Diagnosis generally costs more than the parts.
Most likely causes on this model
- Weeping gas cap seal
A worn cap O-ring passes large-leak testing but fails the small-leak monitor.
- Vent or purge valve not sealing
A valve that will not fully seat leaks the small volume this code detects.
- Tiny hose or grommet cracks
Age-hardened lines leak just enough to trip P0456.
What it costs on a Rogue
Pay for the smoke test to pinpoint the pinhole on the Rogue. The parts - cap, a valve, a length of hose - are inexpensive. Diagnostic time is the larger share of the bill.
Year, engine and mileage change the answer. Get a diagnosis for your Rogue — it weighs these causes against your exact configuration and real complaint data.
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Related symptoms
Nissan Rogue problems & recalls by year
Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0456 behavior is covered on the main P0456 page. Confirm with a scan tool before buying parts.