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P1400 error code - What does it mean?

Tiny
DEBRON
  • MEMBER
  • FORD EXPLORER
2002 Ford Explorer 4x4 - 113,000 miles - V8 (4.6L?) - Towing package.

The "Service Engine" light has been on for some time. It came on when towing our small 15' Travel Trailer.

The error code is "P1400 Differential Pressure Feedback EGR Circuit Low Input." Can someone translate that to layman speak?

I do not trust our local Ford Dealership having been ripped off by them in the past. Before I take the car anyplace I want to know what the issue is.

Thanks for your help.

Ronald Riggs
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Wednesday, November 28th, 2007 AT 1:19 PM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
On these engines the EGR position sensor has hot exhaust gases flow into it thru 2 small hosses off the exaust manifold, it may be melted a bit.
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Wednesday, November 28th, 2007 AT 3:34 PM
Tiny
DEBRON
  • MEMBER
  • 4 POSTS
Merlin2021 -

Thanks for the reply. So does that mean the EGR Position Sensor should be replaced? What about the EGR thingy?

Thanks again.

Ronald Riggs
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Saturday, December 1st, 2007 AT 5:33 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
You will need to inspect both, see if the EGR pintle moves freely in and out, youll need a vacuum pump for that, and physically inspect the position sensor, and the rubber hoses for melting or any damage.
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Sunday, December 2nd, 2007 AT 7:32 AM

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