Mechanics

OBD CODE P0401 AND P0405

1998 Honda Passport

Electrical problem
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.
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Ayman Alabed
August 7, 2008.




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