OBD Guide

P24B9

EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

P24B9 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance. Common causes: evap pump pressure sensor malfunction, open or short circuit in the sensor 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
  • Unstable engine idling
  • The smell of gasoline in or around the car
  • Dips during acceleration

Causes

  • EVAP pump pressure sensor malfunction
  • Open or short circuit in the sensor circuit
  • Wiring harness damage
  • Clogged or damaged EVAP system lines
  • Problems with the EVAP system pump

How to Fix

  1. Check the continuity of the pressure sensor circuit
  2. Test the pressure sensor with a multimeter
  3. Inspect the wiring harness for damage
  4. Check EVAP system lines for blockages and leaks
  5. If necessary, replace the EVAP pump pressure sensor

Related codes

Error P24B9 by Vehicle Brand

FAQ

What does the P24B9 code mean?

P24B9 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

What causes a P24B9 error code?

The most common causes of P24B9 include: EVAP pump pressure sensor malfunction; Open or short circuit in the sensor circuit; Wiring harness damage; Clogged or damaged EVAP system lines.

How do I fix a P24B9 diagnostic trouble code?

To fix P24B9: Check the continuity of the pressure sensor circuit. Test the pressure sensor with a multimeter. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P24B9?

Yes, but get it checked soon

How much does it cost to fix P24B9?

The estimated repair cost for P24B9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat