p0455
Moderate
Mazda · Sedans
Evaporative Emission System Leak Detected (large)
Quick Answer
Error code P0455 on your Mazda Sedans means: Evaporative Emission System Leak Detected (large). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Visually inspect fuel tank for cracks or leaks
2
Check all EVAP system connections
3
Test charcoal canister for integrity
4
Perform comprehensive smoke test
5
Replace fuel tank or seal leaks accordingly
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
Fuel tank
Charcoal canister
EVAP solenoid
Fuel filler neck
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