OBD Guide
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P1457

Unable To Pull Vacuum In Tank

P1457 is an OBD-II diagnostic trouble code meaning: Unable To Pull Vacuum In Tank. Common causes: evap system leak, evap purge valve malfunction. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Check Engine Light Is On
  • Increased fuel consumption
  • The smell of gasoline in or around the car
  • Unstable engine idling
  • Dips during acceleration

Causes

  • EVAP system leak
  • EVAP purge valve malfunction
  • Clogged or damaged carbon adsorber
  • Damage to the fuel tank or cap
  • Fuel tank pressure sensor malfunction

How to Fix

  1. Check the tightness of the fuel tank cap
  2. Inspect the EVAP system for leaks
  3. Check the functionality of the EVAP purge valve
  4. Diagnose a carbon adsorber
  5. Check the fuel tank pressure sensor

Related codes

P0440P0442P0455P0456

Error P1457 by Vehicle Brand

AcuraBMWFordHondaInfinitiKiaLincolnMazdaMercuryVolkswagen

FAQ

What does the P1457 code mean?

P1457 is an OBD-II diagnostic trouble code that indicates: Unable To Pull Vacuum In Tank

What causes a P1457 error code?

The most common causes of P1457 include: EVAP system leak; EVAP purge valve malfunction; Clogged or damaged carbon adsorber; Damage to the fuel tank or cap.

How do I fix a P1457 diagnostic trouble code?

To fix P1457: Check the tightness of the fuel tank cap. Inspect the EVAP system for leaks. Check the functionality of the EVAP purge valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1457?

Yes, but get it checked soon

How much does it cost to fix P1457?

The estimated repair cost for P1457 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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