p1457
Easy Fix
Acura · SUVs
Evaporative Emission System - Leak Detected (Fuel Filler Cap)
Quick Answer
Error code P1457 on your Acura SUVs means: Evaporative Emission System - Leak Detected (Fuel Filler Cap). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
EL1YD3YD3-HYYD3-TSTB5TB5-ASYL1
Likely Causes
  1. Loose or damaged fuel filler cap
  2. Faulty fuel filler neck seal
  3. Cracked fuel tank
  4. Disconnected vapor line
  5. Failing purge control valve
How to Fix It
1
Check fuel filler cap for damage or loose fit
2
Tighten or replace fuel filler cap
3
Inspect fuel filler neck for damage
4
Check vapor lines for cracks
5
Perform leak test with smoke tester
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Fuel filler cap
Related Error Codes
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