Question about Ford Explorer

2 Answers

Egr system Just found out that a mechanic a year ago put the wrong DFPE sensor in my 2003 Ford Explorer XLT (Flex)... they put the one in for a Sport Trac, which my vehicle is not. I have a check engine light with the P1401 code. I have had this code since having my head gasket repaired. Would having the wrong DFPE sensor cause this check engine code?

Posted by on

Ad

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 45 Answers

Have you checked the vacuum lines running to the DFPE? If they are damaged, or got switched during the head gasket replacement (not unheard of) that's probably the problem. If they aren't damaged, try switching them and clearing the codes and see what happens. Yes, having the wrong DFPE installed COULD cause that code to appear, but if you didn't get this code between the time the DFPE sensor was replaced, and when you had the head gasket replaced, I'd say that's not the issue. They are probably interchangeable, or more likely, the exact same part. Hope this helps

Posted on Jul 16, 2013

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Ford Master
  • 21,873 Answers

Its possible. Code 1401 does involve the DFPE sensor circuit.

Posted on Jul 16, 2013

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

  • 18 Answers

SOURCE: how do i reset the check engine light on my 2003

Unplug the battery for about 10 min then plug it back up start the engine. the computer should reset, if the light comes back on then u still have problems.

Posted on Jan 07, 2010

rickyrt441
  • 4399 Answers

SOURCE: 2003 ford explorer sport trac 4 x 4 xlt 63,000

Is it coming from your belt? Where is it coming from? You might have a pulley sticking.

Posted on Feb 09, 2011

emissionwiz
  • 76848 Answers

SOURCE: Ford Escort P1405 Error Code

Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

Posted on Jun 01, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Why do you get code p0171,p0174/


Code 171 means the fuel mixture is too lean on bank one and code 174 is the same thing for bank two. So I doubt the O2 sensors are faulty. Chances are you have a fuel problem, maybe low fuel pressure.

Aug 04, 2014 | 2003 Ford Explorer Sport XLT

Tip

DFPE Differential Feedback Pressure Exhaust sensor


<p><b><span>1.7) <span> </span><u>DFPE - Differential Feedback Pressure Exhaust </u>(sensor)<u></u></span></b><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><span>What is it?</span></b><span> This is an electrical device that measures the differential pressure between two ports on the pipe that supplies the exhaust gases to the EGR.</span><br /> <p><span> </span><br /> <p><b><span>Where is it located?</span></b><span><span> </span>The DFPE is located near to both the EGR and the exhaust feed-pipe to the EGR.<span> </span>THE DFPE makes two piped connections to the exhaust feed-pipe in front of the EGR valve</span><br /> <p><span> </span><br /> <p><b><span>How does it work?</span></b><span><span> </span>The two pipes on the exhaust feed-pipe are connected at two separate sites.<span> </span>When exhaust flows through the feed-pipe it creates a differential in pressure between the two ports and the DPFE detects this and responds by altering a voltage output to the ECU.<span> </span>The ECU is able to detect for how long and by how much the EGR is open by monitoring the DFPE output.<span> </span>Until the engine has warmed the DFPE signal should indicate no EGR activity as the ECU disables the EGR from opening when coolant (engine) temperature readings are low.<span> </span>The EGR is kept closed by either the ECU not sending voltage to the EGR actuator (in cases of direct motor/solenoid control of the EGR) or by not charging the <b>vacuum control solenoid valve</b> on the vacuum line to the EGR (in cases where vacuum is used to actuate the EGR). <span> </span></span><br /> <p><u><span><span> </span></span></u><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><u><span>Symptoms of faulty DFPE</span></u></b><span> </span><br /> <p><span> </span><br /> <p><span>The DFPE may misread the differential pressure leading to the ECU opening or closing the EGR valve at the wrong time.<span> </span>The symptoms mimic very much the effects of a faulty <b>EGR</b> namely:-</span><br /> <p><span> </span><br /> <ul> <li><b><span>Erratic idling</span></b><span> - if DFPE signals 'no pressure' in error and ECU opens the EGR valve.</span></li> <li><b><span>Misfire ('pinking')</span></b><span> - if DFPE detects 'pressure' in error and ECU keeps EGR closed. </span></li> </ul> <p><span><span> </span></span><br /> <p><b><span>Note:</span></b><span><span> </span>Sometimes a DPFE fault can be misdiagnosed:<span> </span></span><br /> <p><span>1) If the <b>coolant temperature</b> sensor is at fault and sends an incorrect 'the engine is warm' signal then the ECU responds by opening the EGR valve prematurely causing the engine to stumble and stall.<span> </span>This pattern looks very much like a fault from the DPFE when in fact the DPFE might be working perfectly.</span><br /> <p><span>2) If the <b>vacuum control valve</b> fails to open when instructed.<span> </span>Apply 5 volts between the socket pins on the valve to check for valve opening.<span> </span></span><br /> <p><span> </span><br /> <p><b><span>How to Check?</span></b><span> Applying pressure to one or the other ports on the DPFE should result in a change in electrical output as detected by a volt meter.<span> </span>No change in voltage output indicates the DFPE is faulty.</span><br /> <p><span> </span><br /> <p><b><span>How to Fix?</span></b><span> Make sure the pipes to the DFPE are free of leaks and clear of carbon deposits.<span> </span>If the DFPE is itself faulty then it must be replaced.</span><br /> <p><span><br /></span><br /> <p><span><b>NEXT 1.8) PCV Positive Crankcase Vent valve</b></span><br />

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

My 2002 Ford Explorer XLT pulls to the right.


A couple of things could be wrong. Need a alignment, something could be bent on that side, steering not centered

Jun 11, 2017 | 2002 Ford Explorer

1 Answer

Ford Escort P1405 Error Code


Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

May 31, 2012 | 1998 Ford Escort

1 Answer

I have a ford explorer sport 2002 and my chek engine light came on it put out a code PO401 do you know what i need to buy


PO401 code means that:
The PCM has determined that there is insufficient flow in the exhaust gas recirculation system. Definition: EGR system fault (Exhaust Gas Recirculation) Probable Causes: a. Blocked passage on EGR system b. Failed EGR Valve c. EGR solenoid faulty d. Failed EGR pressure sensor where applicable e. Failed EGR position sensor where applicable

Mar 08, 2010 | 2002 Ford Explorer

1 Answer

2003 4.0 V6 explorer with the vacume line off the egr it runs, but runs rough. when the vacume line is hooked up to the egr it cuts off. i put a new egr on and it did the same thing please asap..


First. Check the vacum routing from the egr. facing the engine, the vac.
line should go to the right and connect to the egr vacum regulator
solenoid. The line from the solenoid to manifold vacum. The solenoid
is also connected to the powertrain ctrl. module And some models,
have a egr sensor. the two vac.lines from the sensor(if equipped)go to
the exaust below the egr valve. The three wires from the sensor go to the pcm. At this I would plug in the obd2 scanner if no vac.leaks or
bad connections have been found. This can narrow the field greatly.
You can stop by an autozone/napa etc. they will scan it for free.
I hope this helps. Good luck.

Feb 03, 2010 | 2003 Ford Explorer Sport

1 Answer

2003 Ford Ranger Extended Can 3.0L V-6 Flex Fuel Automatic Transmission. I put a new motor in my little truck and now the transmission acts like its in neutral. I just found out the transmission is...


How do I change the 2003 Ford Ranger XLT 3.0 L Flex Fuel -Auto Trans 2wd Camshaft synchronizer and sensor . Do I need any special tools ? Are there after market parts that are precise replacements for the OEM parts ?

Aug 07, 2009 | Ford Ranger Cars & Trucks

1 Answer

Ford Explorer 2003 Sport Trac XLT


have them check the EGR valve and the vacuum lines

Mar 31, 2009 | 2003 Ford Explorer Sport Trac

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

76848 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

fordexpert

Level 3 Expert

5546 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...