Thread: EGR insufficient flow code
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Old 07-15-2006, 03:43 PM
jwichman jwichman is offline
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EGR insufficient flow code
2000 Century with P0401 code. EGR valve had high coil resistance so I replaced the valve and reset SES light. Worked for about two months then the SES light came back. I am now thinking carbon build up is my problem? what is the best way to clean the EGR port, throttle body and etc?
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