OBD Guide
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P144A

Evaporative Emission System Purge Vapor Line Restricted/Blocked

P144A is an OBD-II diagnostic trouble code meaning: Evaporative Emission System Purge Vapor Line Restricted/Blocked. Common causes: evap purge line clogged or kinked, purge valve malfunction. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Check Engine light comes on
  • Smell of gasoline in or around the car
  • Increased fuel consumption
  • Unstable engine idling
  • Fueling problems (intermittent delivery)

Causes

  • EVAP purge line clogged or kinked
  • Purge valve malfunction
  • Carbon adsorber contamination
  • Damage to purge valve wiring harness
  • Problems with the fuel tank or cap

How to Fix

  1. Visually inspect the purge line for damage
  2. Checking the purge valve for functionality
  3. Cleaning or replacing the carbon adsorber
  4. Checking the tightness of the fuel system
  5. Resetting the error and re-diagnosis

Related codes

P0440P0442P0455

FAQ

What does the P144A code mean?

P144A is an OBD-II diagnostic trouble code that indicates: Evaporative Emission System Purge Vapor Line Restricted/Blocked

What causes a P144A error code?

The most common causes of P144A include: EVAP purge line clogged or kinked; Purge valve malfunction; Carbon adsorber contamination; Damage to purge valve wiring harness.

How do I fix a P144A diagnostic trouble code?

To fix P144A: Visually inspect the purge line for damage. Checking the purge valve for functionality. Cleaning or replacing the carbon adsorber. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P144A?

Yes, but get it checked soon

How much does it cost to fix P144A?

The estimated repair cost for P144A is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat