P24B9

EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

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

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

Related codes

P24BA P24BB P0455