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Old 02-24-2011, 11:20 AM
Firefighter Ryan Firefighter Ryan is offline
Learning to use the forums
 
Join Date: Mar 2010
Posts: 3
Default Po401

Hi have a 97 ranger with a 2.3 inline 4 with the dual spark ignition. I have had my check engine light on for about six months now and finally got a chance to reading the code and it came up as po401 insignificant egr flow. I was woundering what the common fix is for this and how to go about doing it thanks.
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Old 02-24-2011, 11:42 AM
lovemud lovemud is offline
off road all the time
 
Join Date: Feb 2011
Posts: 593
Default Re: Po401

1. check your DPFE sensor

2. clean your MAFs

3. get your catalytic converter checked
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