OBD Guide
ENFRDEESPT

P1450

Unable To Bleed Up Fuel Tank Vacuum

P1450 is an OBD-II diagnostic trouble code meaning: Unable To Bleed Up Fuel Tank Vacuum. Common causes: evap system leak, evap purge valve malfunction. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

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

Causes

  • EVAP system leak
  • EVAP purge valve malfunction
  • Clogged or damaged vacuum lines
  • Fuel tank pressure sensor malfunction
  • Problems with fuel tank sealing

How to Fix

  1. Check the system for leaks using a smoke machine
  2. Check the operation of the EVAP purge valve
  3. Inspect vacuum lines for damage or blockages
  4. Check the tightness of the fuel tank and cap
  5. Check the fuel tank pressure sensor

Related codes

P0440P0442P0455P0456

Error P1450 by Vehicle Brand

BMWBuickCadillacChevroletChryslerFordGMGMCKiaLincolnMazdaMercuryOldsmobilePlymouthPontiacSaturnSuzukiVolkswagen

FAQ

What does the P1450 code mean?

P1450 is an OBD-II diagnostic trouble code that indicates: Unable To Bleed Up Fuel Tank Vacuum

What causes a P1450 error code?

The most common causes of P1450 include: EVAP system leak; EVAP purge valve malfunction; Clogged or damaged vacuum lines; Fuel tank pressure sensor malfunction.

How do I fix a P1450 diagnostic trouble code?

To fix P1450: Check the system for leaks using a smoke machine. Check the operation of the EVAP purge valve. Inspect vacuum lines for damage or blockages. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1450?

Yes, but get it checked soon

How much does it cost to fix P1450?

The estimated repair cost for P1450 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat