Question about 1995 Ford Thunderbird

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Where is the dpfe sensor located exactly, and what is needed to replace it ??

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  • Ford Master
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The dpfe sensor is located at the back of the motor fastened to the upper intake manifold with 2 3/8" bolts,it has an electrical connector with 3 wires in it and 2 vacuum hoses that fasten to the underside of the sensor.I have also seen them same area but fasten to the firewall.the sensor is about 3" by 1/2-2"in size.

Posted on Mar 15, 2011

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  • Contributor
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Look for small vacuum tubes and an electrical plug on drivers side near valve cover small square box.

Posted on Mar 15, 2011

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emissionwiz
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SOURCE: DPFE Sensor with codes PO401 And PO402

The DPFE is located near the EGR valve, it has 2 very thick silicone rubber hoses connected to it that come off the exhaust. It is rectangular and about 1/2 the size of a pack of smokes

Posted on Nov 12, 2008

Trendy-Bee
  • 156 Answers

SOURCE: I need to replace my DPFE sensor, where is it

How to replace it

A DPFE (delta pressure feedback EGR) sensor on a Ford is designed to sense the amount of EGR (exhaust gas recirculation) flow. The EGR is used to introduce burnt exhaust gases back into the engine through the intake manifold only at cruising speeds. This introduction of exhaust gases helps prevent pre-ignition by cooling the combustion temperatures, and it helps reduce emissions. A bad sensor will cause a stumble or rough engine at part throttle around 40 mph. And when the sensor begins to fail, the "Check engine" light will come on and show a code of "P0401," meaning that EGR flow is insufficient.

  1. Remove the rubber hoses from the bottom of the DPFE sensor. The sensor is located on the firewall to the rear of the EGR valve. It is a black square box with an electrical connector plugged into the front. When the hoses are removed, inspect them for contamination. Oftentimes, the larger hose will filled with a white-looking powder caused from moisture. Use a small screwdriver or pick and break it loose and shake the powder out. If the hoses are too contaminated, remove them and clean them out.
  2. Step 2 Remove the electrical connector from the sensor. Remove the two screws holding the sensor to the firewall.
  3. Step 3 Bolt the new sensor to the firewall. Install the rubber hoses on the bottom of the sensor, and plug in the electrical connector.
  4. Step 4 Clear the codes to reset the "Check engine" light. Plug the code scanner in to the OBD connector, which is located under the driver's side dash. Turn the ignition key to the On position without starting the engine---just make sure that the lights on the instrument panel are on. The code scanner has a button labeled "Erase." Push this button and the scanner will display "Wait." When the scanner shows "Codes cleared," the check engine light should go out on the instrument panel. If the light did not go off, turn the ignition key off for a few seconds and start the car. The light should be off at this point.

Posted on Dec 30, 2009

  • 43 Answers

SOURCE: need to replace my dpfe sensor on my 1999 mercury mountaineer. Where is it, i would like to change it myself

I believe the sensor that you are looking for is on the drivers side of the engine. If you have a 4.0 SOHC engine or a 5.0 engine the wiring will be the same. You will have a brown with a white tracer, a brown with a light green tracer, and a grey with a red tracer to the sensor. If you you have a 4.0 EI then you will have a Brown with a white tracer and 2 brown with a light green. If you follow the 2 tubes coming up from your exhaust manifold you should be able to locate your sensor it will have to tubes or hoses going to it from your exhaust manifold. Good luck.

Posted on Apr 18, 2009

Molson02536
  • 3854 Answers

SOURCE: rEPLACING mass air flow sensor

The mass flow sensor on the 1999 intrigue is along the intake tube right after the air filter intake housing. Loosen the two clamps that hold the MAF sensor between the Air filter box cover and air intake tube, disconnect the wire leads at the MAF sensor connection and remove the MAF. Note it's uncommon for the MAF sensor to go bad and 95% of the time, cleaning it with MAF sensor with MAF cleaner will fix any problem it may of had to trigger the DTC codes.
Start with trying to clean it first just by following the instruction on the MAF cleaner. This should save you time and money to get your Intrigue running 100% again soon.
Good luck and thank you for using Fixya.

Posted on Mar 18, 2010

  • 518 Answers

SOURCE: I can't find the location of the DPFE (EGR

Usually mounted on driver side,on a bracket over exhaust manifold or on a bracket on intake manifold. One of the 2 hoses that attach to it goes directly to egr valve. If you still cant locate it follow hose from egr valve it ends at sensor.

Posted on Mar 21, 2011

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1 Answer

P1405


P1405- Differential pressure feedback sensor upstream hose off or plugged
It has to do with your EGR operation

The Differential feedback pressure sensor is located under the hood on the drivers side.

If you locate your EGR valve you will see a tube going from it to your exhaust manifold.

you will notice 2 small tubes leading from the large one feeding into a small sensor....this is the DPFE sensor which is throwing your code.

Now....the DPFE "could" be doing its job by telling you the orfice in the tube is plugged, but the DPFE is known to fail on these trucks.....but it throws a code P401....

It may be a good idea to try a new DPFE sensor before a new EGR tube.


Hope helps.

Mar 09, 2012 | 2003 Vauxhall Vectra

1 Answer

Erg flow insufficient


  • The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
  • There is a blockage in the EGR (tube), most likely carbon buildup
  • The EGR valve is faulty
  • The EGR valve may not be opening due to a lack of vaccuum
It is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
  • Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
  • Clean out the EGR valve and/or tubing to remove deposits
  • Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
  • Replace the DPFE sensor (with a good quality / OEM one)
  • Replace the EGR valve
The EGR valve is located in the engine compartment. Its should look this

2_7_2012_10_25_48_pm.jpg

Feb 07, 2012 | 2000 Mercury Sable

1 Answer

I have a tropubleshooting code of P1405. On a ford Expedition 5.4l. Where do i fine the DPFE sensor (DPFE sensor upstream hose off or plugged.. aaECM detected EGR flow in a negative direction with aan


DPFE sensor failures are VERY COMMON on Ford vehicles. However, clogged EGR ports are also very common on 5.4L Ford engines. The DPFE sensor is located on the left side of the engine. It connects to two silicone rubber hoses that connect to the steel EGR tube coming from the back of the engine to the EGR valve. (See picture of the sensor below)

Another common failure is a DPFE sensor that has melted due to excessive exhaust back-pressure. If you find the DPFE sensor melted, suspect a restricted exhaust. (smashed tailpipe, clogged catalytic converter, etc..)


12_29_2011_3_03_10_am.jpg

Dec 29, 2011 | 2002 Ford Expedition

1 Answer

What does the code p 1405 mean


P1405 - Differential pressure feedback sensor upstream hose off or plugged

It has to do with your EGR operation. The Differential feedback pressure sensor is located under the hood on the drivers side.

If you locate your EGR valve you will see a tube going from it to your exhaust manifold. You will notice 2 small tubes leading from the large one feeding into a small sensor... this is the DPFE sensor which is throwing your code.

Now... the DPFE "could" be doing its job by telling you the orfice in the tube is plugged, but the DPFE is known to fail on these trucks.....but it throws a code P0401...

It may be a good idea to try a new DPFE sensor before a new EGR tube.

Hope this helps; keep us updated.

Aug 15, 2011 | 1998 Lincoln Town Car

1 Answer

Where is the dpfe sensor located on the 2000 ford taurus?


I had to replace the dpfe sensor on my 2000 Ford Explorer and they should be the same.
Mine was located on the left side of the engine (facing the engine with the hood up) above the valve cover. It will have two 3/8" vacuum lines going into it and a plug ended cable. Very simple to replace.

May 16, 2011 | 2000 Ford Taurus

1 Answer

Just bought a 2002 Mercury Sable LS, I brought it to Ford/Mercury repair to get a full diagnostic, they said I need to change the DPFE sensor, which some people say it's the same as the EGR sensor, but...


You will need to get the parts from the dealer.

What engine?

the EGR valve is generally located on the backside of the intake plenum near the throttle body. There will be a metal pipe that goes in between the EGR valve and the exhaust manifold. If you follow that pipe you will run into to rubber looking hoses. the DPFE sensor will be on the other end of those two hose. The hoses are two different diameters as well as the fittings that they attach to. Make sure you have the right hose going to the right fitting.

Oct 12, 2010 | Mercury Sable Cars & Trucks

1 Answer

I need top replace the E G R valve on my Ford Windstar 2002


This is a pretty straight forward replacement - only 2 mounting bolts, a vacuum hose and one other pipe that'll come off with an adjustable wrench.

NOTE: this notice is from the Autozone.com site regarding the EGR valve:

  • **Caution!!** Before replacing the EGR Valve, inspect the DPFE/EGR Valve Pressure Feedback Sensor and hoses for proper operation. It is common for a DPFE sensor to set a trouble code
See "Related Links" below for the DPFE sensor section of Autozone's online repair guide. Answer It is located at the back of the engine on the top between the engine block and the front windshield. It should be black or chrome colored and kind of looks like a disk, with a small vacuum hose coming out the top of it. Just replaced mine in my Taurus today. Amanda Answer nothing tricky, just be sure to clean the gasket surfaces...also You should be able to find a shop manual at your local library with the right info...make copies as they are usually only in the REFERENCE section....good luck:) Answer its located next to the air inlet boot this is the boot that comes from the air cleaner housing the valve should be round black and has a vacuum line going to it But, if you are replacing it because there is a code for it you need to make sure that the valve is cause of it most fords had a problem with a sensor called a DPFE sensor which stands for differential pressure feedback exhaust sensor the problem is they would get moisture from the exhaust causing them to short out

Mar 31, 2009 | 2002 Ford Windstar Cargo

1 Answer

I have an error code p1405 on my 2004 lincoln navigator - what is


DPFE Sensor upstream hose bad. Google DPFE Sensor location. Then remove and replace or clean hoses, Clean connectors at sensor. If this does not clear problem replace Sensor.

Mar 22, 2009 | 2004 Lincoln Navigator

2 Answers

2002 ford focus p0401


Here is a list of possible causes for a PO401, hope this helps.

  • DPFE sensor signal circuit is shorted to ground
  • DPFE sensor VREF circuit is open between sensor and PCM
  • DPFE sensor downstream hose off or plugged
  • DPFE sensor hoses both off, loose or damaged
  • DPFE sensor hoses connected wrong (reversed)
  • EGR orifice tube is damaged or restricted
  • PCM has failed

Feb 10, 2009 | 2000 Ford Focus

2 Answers

DPFE Sensor with codes PO401 And PO402


The DPFE is located near the EGR valve, it has 2 very thick silicone rubber hoses connected to it that come off the exhaust. It is rectangular and about 1/2 the size of a pack of smokes

Nov 12, 2008 | 2001 Mercury Sable

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