garajizOBD-II code · generic
P0456
Evaporative Emission System Leak Detected (very small leak)
- System
- P0 — Powertrain (generic)
- Severity
- Low (1/5)
- Can I keep driving?
- Usually safe to drive
What does P0456 mean?
P0456 is defined as “Evaporative Emission System Leak Detected (very small leak)”.
You can usually keep driving, but have it checked soon so a small fault doesn’t become a bigger one.
Manufacturer-specific meanings
The same code can mean something different on some makes.
- Kia: EVAP Emission System Leak Detected Very Small Leak
- Nissan: Evaporative emission (EVAP) canister purge system – very small leak
Related codes
- P0455Evaporative Emission System Leak Detected (large leak)
- P0457Evaporative Emission System Leak Detected (fuel cap loose/off)
- P0454Evaporative Emission System Pressure Sensor/Switch Intermittent
- P0458Evaporative Emission System Purge Control Valve Circuit Low
- P0453Evaporative Emission System Pressure Sensor/Switch High
- P0459Evaporative Emission System Purge Control Valve Circuit High
Look up another code
This page is general information; an exact diagnosis needs measurements and a technician’s check.