OBD
P23E6
EGR C Control Stuck Closed
What it means
P23E6 means EGR C Control Stuck Closed.
Check these first
- Carbon or soot locking the EGR C valve closed
- A failed EGR C actuator that cannot open the valve
- A blocked EGR C passage or tube
- A stuck EGR C pintle from heavy deposits
What to do next
- Command the EGR C valve open and watch actual position
- Inspect the EGR C valve and passages for carbon
- Clean the EGR C valve and port of deposits
- Check the EGR C actuator for free movement
- Replace the EGR C valve if it stays closed after cleaning
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.