What does code P1400 mean on Hyundai vehicles?
The ECU detects a malfunction in the exhaust gas recirculation system monitoring process.
OBD-II Code Hyundai
P1400 — Hyundai — EGR System Monitor Malfunction
The ECU detects a malfunction in the exhaust gas recirculation system monitoring process.
Common symptoms
- Check engine light on
- possible emissions increase
Possible causes
- Faulty EGR valve
- DPFE sensor failure
- blocked EGR passages
Initial recommendation
Inspect EGR valve operation, verify DPFE sensor readings and clean EGR passages.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Hyundai code P1400 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands