1998 Honda Passport 6 cyl Two Wheel Drive Automatic 166k miles
The following OBD codes P0401 EGR Flow Insufficient Detected and P0405 EGR Sensor A Circuit Low causing my check engine light to stay on. I replaced the EGR valve and reset the computer but the same two message keep reappearing. I need help to detrmine other reasons that could cause these errors. Your help is greatly appreciated.