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Code P1401

Tiny
DWEB
  • MEMBER
  • 2002 FORD EXPLORER
  • 4.6L
  • V8
  • 4WD
  • AUTOMATIC
  • 132,000 MILES
Reads code p1401. When driving does not have any power.
Monday, June 13th, 2016 AT 2:30 PM

7 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
See pics this may be an EGR problem so you will need a vacuum pump like a mity vac and a voltmeter to test. Also check for a vacuum leak.
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Monday, June 13th, 2016 AT 3:21 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I am attaching the testing that we need to run through in order to figure out this testing.

Plus here is a guide that will help with figuring this out:

https://www.2carpros.com/articles/how-to-check-wiring

Lets run through this testing and go from there. Thanks
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Monday, December 14th, 2020 AT 4:09 PM
Tiny
JCHERRY
  • MEMBER
  • 1 POST
  • 2002 FORD EXPLORER
  • V8
  • 4WD
  • AUTOMATIC
  • 98,000 MILES
I have codes P1401 and P1400 and I'm looking for a troubleshooting tips. Please help. Thanks
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Tuesday, December 15th, 2020 AT 10:17 AM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Replace EGR position sensor
(Check for exhaust leak
check the DPFE lines
replace DPFE sensor )
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Tuesday, December 15th, 2020 AT 10:17 AM (Merged)
Tiny
CHELLA209360
  • MEMBER
  • 3 POSTS
Did that fix your car? What did you have to replace? Im having the same problem with my ford escape
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Tuesday, December 15th, 2020 AT 10:17 AM (Merged)
Tiny
DROMERO1977
  • MEMBER
  • 1 POST
  • 2002 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 76,000 MILES
I have a Ford Explorer 2002 and it looks that code P1401 needs to get fix, Is this an easy fix, and can I buy these parts at a part store or just the dealer?

Also it shows P0125 what's this means?

How can this 2 codes be fixed?

Thank you very much.

Diane.
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Tuesday, December 15th, 2020 AT 10:17 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
PO 1401 Passanger side downstream O2 sensor. It is a part that you can unblot and replace by rebolting the new one.

PO125
That indicates the coolant isn't reaching operating temperature. I would replace the thermostat. That is the most common cause for that code.
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Tuesday, December 15th, 2020 AT 10:17 AM (Merged)

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