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Eobd code 4010 insufficient flow to egr valve on 2001 ford maveri

Hi got a ford maverick 2001 2.0l 16 v petrol uk spec, i have changed the egr valve and the egr solenoid have also removed all vaacum hoses to do with egr and checked for blocks and leaks also re moved metal tube from ex manifold to egr checked for blocks, if i leave solenoid elec connection disconnected car runs ok but light comes on was thinking of changing dpfe valve but it is expensive and i need to know it,s gonna work before i,ll pay out for it .
any help would be great
thanks lee

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Dpbeffe sensors on fords are a common problem I had the same issue with several fords of same year new sensor from ford only cost me 38$ from ford just make sure both tubes to dpfe are clear though any blockage screws up the reading from the sensor

Posted on May 20, 2009

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I have a ford windstar 2001 LX 3.8 i have the codes po401 po171 and po174


171 is a HEGO sensor unable to switch/ 174 is for HEGO sensor also.. 401 is insufficient EGR flow!! egr valve may be clogged or need replaced!!

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Why is codes p2106 p0401 on?


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May 29, 2014 | 2005 Ford Explorer

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EGR FLOW INSUFFICIENT


On your EGR tube you have two hoses coming off of it. If you put them on in reverse you will get a code of insufficient flow. I put headers on and replaced EGR tube and valve and the flow sensor and that's the code that I received switched the hoses and solved the code

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Egr fault code p0401


Hi there:

In fixing this code, 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


Hope this helps.

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Check engine light code P0401 98 Ford expedition


OBD-II Trouble Code P0401 - Insufficient EGR Flow

EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR. You may notice drivability problems such as pinging (a.k.a. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. There may also be other symptoms.

A code P0401 most likely means one or more of the following has happened:
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

Check it and keep us updated. Hope this helps (remember to rating this free answer).

Oct 13, 2011 | 1998 Ford Expedition

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I have a 2001 Ford Taurus the check engine light is on the code I got is p0401. What does that mean


insufficient egr flow usually the dpfe sensor located in the back of intake manifold or mounted
on firewall.if you follow the wires/vacuum line from the egr valve you'll see it. common problem
& fairly easy job pick up a new 1 so you no what it looks like

good luck

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P401 emission code ford escape 2001 6cyl


P0401 shows an Exhaust Gas Recirculation Flow Insufficient. Without a good scan-tool you will be playing the "Parts Changing Game". Insufficient flow can be the result of a vacuum leak, bad MAP sensor, an exhaust leak, faulty EBP sensor, carbon build-up, and so on. I wish I could say more but with all the electronics it is more complicated then earlier cars.

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I have a 2001 mustang with a 3.8l I have a trouble code P0104


It is the DPFE sensor with out this your rpms will continue surge. Alot of people make the mistake of just replacing the EGR valve instead of the DPFE sensor which measures exhaust prssure going through the EGR vavle.

May 07, 2009 | 2001 Ford Mustang

1 Answer

Engine service light


The DPFE (Diferential Pressure Sensor)sensor is usually mounted on the engine and is connected to the pipe that runs from the exhaust manifold to the EGR valve with two rubber hoses. When the sensor goes bad, the Check Engine light comes on and typically sets any or all of teh following fault codes: P0171 & P0174 (lean codes), and/or P0401 (insufficient EGR flow). Nine out of ten times, the fault is not a bad EGR valve or a vacuum leak, but a bad DPFE sensor. A replacement costs about $112 at Ford, or about $48 at an aftermarket auto parts store.I hope this helps.

Sep 30, 2008 | 2001 Ford Mustang

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