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Board index » OBD Troubleshooting Help » OBD-II P0XXX Powertrain Codes All times are UTC - 7 hours [ DST ]

Replaced EGR DPFE O2s and still get po401

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anticUS	Post subject: Replaced EGR DPFE O2s and still get po401 Posted: Tue Aug 29, 2006 6:50 am
Joined: Tue Aug 29, 2006 6:45 am Posts: 3 Location: Atlanta	OK, This one has my blood pressure at its peak! I have replaced the egr valve, the dpfe, and the o2 sensors as well as removed, cleaned, and replaced the hose from the egr down to the exhaust. I am still getting a po401 code. WHAT GIVES??? Any help would be appreciated.
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Sponsored Links	Post subject: Replaced EGR DPFE O2s and still get po401  Posted: Today
Joined: 29 Jun 2004 08:12 pm Posts: N/A
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jeff compton	Post subject: Posted: Tue Aug 29, 2006 7:48 am
Joined: Tue Jan 10, 2006 2:09 pm Posts: 4896 Location: Orleans Ontario Canada	what kind of vehicle, what engine? what mileage? what brand of parts?
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anticUS	Post subject: I bet you can guess why I'm having trouble #smacks forehead# Posted: Wed Aug 30, 2006 6:00 am
Joined: Tue Aug 29, 2006 6:45 am Posts: 3 Location: Atlanta	99 Ford f150, 123k, all ford parts
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jomaul	Post subject: Posted: Wed Aug 30, 2006 10:23 am
Joined: Tue Aug 22, 2006 5:24 pm Posts: 3	did you clean the 2 egr passages in the throtle body. You need to remove the throtle body and clean those passages and all will be well again. this same thing happened to me and thats what a ford tech told me to do.
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jeff compton	Post subject: Posted: Wed Aug 30, 2006 12:59 pm
Joined: Tue Jan 10, 2006 2:09 pm Posts: 4896 Location: Orleans Ontario Canada	I totally think he's right!
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anticUS	Post subject: Thanks Fellas Posted: Wed Aug 30, 2006 1:39 pm
Joined: Tue Aug 29, 2006 6:45 am Posts: 3 Location: Atlanta	That seems to be the consensus. At least I got some fresh parts to go along with a good scrubbing.
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jeff compton	Post subject: Posted: Wed Aug 30, 2006 2:32 pm
Joined: Tue Jan 10, 2006 2:09 pm Posts: 4896 Location: Orleans Ontario Canada	keep us postted !
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