P23E5

Symptoms

• Check Engine light comes on
• Unstable idle
• Reduced engine power
• Deteriorating fuel economy
• Possible misfires

Causes

• EGR C control valve faulty
• EGR valve is clogged with carbon deposits
• Damaged EGR valve wiring or connectors
• EGR valve position sensor malfunction
• Problems with the EGR vacuum control system (if applicable)

How to Fix

1. Check the EGR valve wiring and connectors for damage
2. Clean the EGR valve from carbon deposits
3. Check EGR valve operation using diagnostic equipment
4. Replace faulty EGR control valve C
5. Check EGR vacuum lines and connections for leaks (if applicable)

Related codes

Error P23E5 by Vehicle Brand