P0401 OBD2 Error Code - Exhaust Gas Recirculation Flow Insufficient Detected
What does this error code mean?
Exhaust Gas Recirculation Flow Insufficient Detected
Is it safe to drive?
Short trips at low load are acceptable. Long journeys or heavy loads are not recommended; get a diagnosis as soon as possible.
Estimated repair cost
Repair costs vary by cause and vehicle. Have a technician diagnose the issue.
Expert opinion
The code alone does not identify the faulty part; vehicle and measurement can yield different results. Have OBD-II reading and necessary checks done at a qualified workshop.
For information only. Content on this site is for general guidance; it does not replace professional diagnosis or repair. Always consult a qualified technician before making decisions about your vehicle.