P2AA4

Symptoms

• Unstable engine idling
• Reduced engine power
• Increased fuel consumption
• Engine stalls on cold start
• Check Engine light comes on

Causes

• EGR valve stuck open
• EGR control solenoid valve malfunction
• Open or short circuit in the EGR control circuit
• Dirty or clogged EGR channels
• EGR valve position sensor malfunction

How to Fix

1. Check the condition of the EGR valve and its channels
2. Check the EGR valve control circuit for opens and short circuits.
3. Check the operation of the EGR control solenoid valve
4. Clean or replace EGR valve if necessary
5. Reset the error code and check if it returns

Related codes

Error P2AA4 by Vehicle Brand