p0455
Moderate
Mazda · SUVs & Crossovers
EVAP System Leak Detected (Very Large Leak)
Quick Answer
Error code P0455 on your Mazda SUVs & Crossovers means: EVAP System Leak Detected (Very Large Leak). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Verify fuel cap is properly seated
2
Perform full EVAP system visual inspection
3
Conduct smoke test to locate leak source
4
Check charcoal canister for damage
5
Replace or repair damaged components
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
Charcoal canister
EVAP hoses
Fuel tank repair sealant
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