P0456 on a Nissan Rogue
P0456 means evaporative Emission System Leak Detected (Very Small Leak). On the Rogue, a few causes come up far more than others.
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 common causes on the Rogue
- 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 P0456 costs to fix 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. Start a case and Redline weighs these causes against what your car shows, then names the check that would settle it.
Other codes on the Nissan Rogue
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.
P0456 on your Rogue?
Every problem becomes a Case. Tell Redline what your Rogue is doing: it shows what the evidence supports, what’s still missing, and what to check next, before you approve a repair.
“Inner pad ~1 mm. Outer pad 3 mm.”
Next: check the slide pins move freely before buying parts.