The EGR system tends to get clogged with carbon built up. You can try to clean the EGR valve and its tubing before replacing anything.
Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P0401 1997 Honda Civic code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
Low EGR flow control is detected
Need more information on how to fix the P0401 1997 Honda Civic code? Get Access to Factory Service Manuals
Get the P0401 1997 Honda Civic code diagnosed by a professional: Find a repair shop in your area