OBD Guide
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P144C

Evaporative Emission System Purge Check Valve Performance

P144C is an OBD-II diagnostic trouble code meaning: Evaporative Emission System Purge Check Valve Performance. Common causes: evap purge valve malfunction, open or short circuit in valve circuit. 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
  • Increased fuel consumption
  • The smell of gasoline in or around the car
  • Unstable engine idling
  • Dips during acceleration

Causes

  • EVAP purge valve malfunction
  • Open or short circuit in valve circuit
  • Wiring harness damage
  • Purge valve clogged
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of the purge valve circuit
  2. Check the resistance of the purge valve
  3. Clean or replace EVAP purge valve
  4. Check the EVAP system for leaks
  5. Reset the error code and check if it returns

Related codes

P0440P0441P0442

FAQ

What does the P144C code mean?

P144C is an OBD-II diagnostic trouble code that indicates: Evaporative Emission System Purge Check Valve Performance

What causes a P144C error code?

The most common causes of P144C include: EVAP purge valve malfunction; Open or short circuit in valve circuit; Wiring harness damage; Purge valve clogged.

How do I fix a P144C diagnostic trouble code?

To fix P144C: Check the integrity of the purge valve circuit. Check the resistance of the purge valve. Clean or replace EVAP purge valve. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P144C?

Yes, but get it checked soon

How much does it cost to fix P144C?

The estimated repair cost for P144C is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat