P04AE

EVAP System Purge Control Valve B Performance/Stuck Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Increased fuel consumption
Unstable engine idling
Check Engine Light Illuminates
Dips during acceleration

Causes

Purge valve stuck open
Open or short circuit in valve control circuit
Malfunction of the solenoid part of the valve
Mechanical damage to the valve or contamination
Control circuit power or ground problems

How to Fix

Check the integrity and connections of the valve wiring harness
Test valve resistance and operation
Check the resistance of the control circuit with a multimeter
Check valve operation settings in diagnostic software
If necessary, replace the EVAP purge valve.

Related codes

P0444 P0445 P0455 P04AA