p0456
Moderate
Jaguar · Sedans & Sports Cars
Evaporative Emission Control System Leak Detected (Small)
Quick Answer
Error code P0456 on your Jaguar Sedans & Sports Cars means: Evaporative Emission Control System Leak Detected (Small). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Inspect all EVAP hoses
2
Check purge valve operation
3
Test canister seals
4
Check for small leaks
5
Verify fuel cap is secure
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Purge valve
EVAP hoses
Fuel cap
Sealant
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