Ford explorer p0401

EGR valve. DPFE sensor. And still have a check engine lite on with 1 code. P0401 Exhaust Gas Recirculation Flow Insufficient Detected. Not sure if I have to check any vacuum hoses and dont know their location. Any help what to check next would be greatly appreciated. Join the Elite Explorers for $20 each year.

The testing procedures shown in this video can be applied to any Ford, Lincoln or Mercury that uses a vacuum controlled EGR valve combined with a Delta Press...Code P0161 indicates that there is an issue with the Bank 2, Sensor 2 O2 sensor’s heater circuit. What Does the P0161 Code Mean? Diagnostic trouble code (DTC) P0161 stands for “O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2).” It warns about an issue with the Bank 2, Sensor 2 oxygen (O2) sensor’s heater circuit.September 11, 2018 by Jason. P0302 in the Ford Explorer is a common OBD II trouble code. It indicates that your vehicle’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Explorer’s check engine light to come on, you shouldn’t drive your vehicle at all.Labor: 1.0. The cost to diagnose the P1408 Ford code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto …AUTOMATIC. 165,000 MILES. I have a 2004 ford explorer 6 cylinder. I need to get the car registered, however the check engine light is on. I checked, and the code is P0401 Exhaust EGR flow insufficient. I have been bad and running it below a quarter tank on average for the past year. When I start the car, it idles rough and sometimes shuts off. Codes: P0135, P0141, P0155, P0161, P0403 and P0443. I have an issue with all the sensors on the same circuit: all four O2 sensor heaters, EGR and PCV, see picture for codes. I checked the fuse (#42) and it's okay.

Mar 11, 2006 · I have P0401 code on my 2002 Ford Explorer-Eddie Baurer- v-8, I've changed the EGR valve and reset the light by disconnecting the battery. Drove about 30 miles and its back on, now what do I do. I'am … read more Have DTC Codes on a 2002 ford explorer sport trac p0401 p0171 p0174 System too lean Bank 1 and 2 aready replaced lower intake gaskets what next read a TSB bullitin about how it may be something else … Resulta que la Guera (Ford Explorer 2004) Tiene un problema con los gases de re circulación y el posible culpable es la Válvula EGR. Al momento se volvió a ...2006 2007 2008 2009 2010 Mercury Mountaineer or Ford Explorer Ford Ranger, 4.0l map sensor and EGR replacement. DTC code P0106 or p04011997 Ford Explorer P0401 EGR Flow. K_MINER119 MEMBER; 1997 FORD EXPLORER; V8; 2WD; AUTOMATIC; 259,000 MILES; VIN 1FMDU32P2VUA38455 Can not find DPFE that sends code to computer. All suggestions point to replace will fix problem. ... I Have A 2004 Ford Explorer 6 Cylinder. I Need To Get The Car Registered, However The Check …P0401 to P0402 / 96 Explorer 5.0. ejscarfo; March 21, 2011; Stock 1995 - 2001 Explorers; 2. Replies 23 Views 9,070. April 4, 2011. jremington59. J. P0401, P0402, P1405 - Bad EGR Hose? shadowless127; ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community. Founded in 1996, our goal is to support our members …EGR system. How to clean the egr system. EGR system cleaning and carbon removal in your car DIY with Scotty Kilmer. Low flow trouble code P0401. How to clean...

I thought changing the EGR valve would be an easy job, and it would have been if the two 10mm bolts holding it on were not corroded in place. It took a good ...Hello all, 2002 Explorer 4.0 SOHC 230K miles AWD. Got a P0401 that I can't get rid of. I have replaced the sensor 3 times. Checked the EGR valve for diaphragm leaks, made sure the ports on the EGR tube to intake, tube to exhaust, and branches to sensor were clear. EGR solenoid appears to work...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.Common problems with the Ford Explorer include transmission failure on Explorers with more than 100,000 miles and wheel-bearing failures on Explorers after 90,000 miles. Many Ford Explorer owners complain about a binding problem in the vehi...I have a 2000 Ford Explorer. 5.0L engine. I am getting the P1401 code. ... 1999 F250 super duty 6.8 l triton with p0401 & p0402 codes. Replaced D{F{E with a new one ...

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Jan 1, 2018 · I have a 1998 Ford Ranger 2.5L that gives the following code: P0401 "Exhaust Gas Recirculation (EGR) valve, insufficient flow detected". The Check Engine Light is on. What does this mean, and what cau … read more Ford Explorer codes p0174 , p0401 , rough idle and check engine light on. First thoroughly check all of the hoses and elbows connected to the intake and EGR (vacuum system) for splits, cracks, holes or tears, this could quickly cause these codes and fixes for less than $10.If you are experiencing rough starts of your Ford, and sometimes your engine stalling at high RPMs, very likely you have a P0401 code. So, how to fix a P0401 code on Ford? To fix …Sep 11, 2018 · September 11, 2018 by Jason. P0302 in the Ford Explorer is a common OBD II trouble code. It indicates that your vehicle’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Explorer’s check engine light to come on, you shouldn’t drive your vehicle at all. Codes: P0135, P0141, P0155, P0161, P0403 and P0443. I have an issue with all the sensors on the same circuit: all four O2 sensor heaters, EGR and PCV, see picture for codes. I checked the fuse (#42) and it's okay.Sep 6, 2021 · P0401 Check engine code on 2008 Ford Explorer. Changed EGR valve. Changed Fuel Inlet assembly cap less system. Changed Engine Wiring Harness. Changed Intake Manifold gaskets. Replace vacuum hose on top of engine. Still getting check engine light after resets

Can't fill fuel tank plus codes: P0401 and P115E -- FUEL FILLING ISSUE FIXED Hoping someone can help narrow down my problem. 2007 Explorer XLT. 4.0 V6 This started as a fuel filling problem. The gas pumps kicks off every few seconds. Initially, I thought evap canister or solenoid. Then...1997 Ford Explorer P0401 EGR Flow. K_MINER119 MEMBER; 1997 FORD EXPLORER; V8; 2WD; AUTOMATIC; 259,000 MILES; ... I Have A 2004 Ford Explorer 6 Cylinder. I Need To Get ...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. Sep 6, 2021 · P0401 Check engine code on 2008 Ford Explorer. Changed EGR valve. Changed Fuel Inlet assembly cap less system. Changed Engine Wiring Harness. Changed Intake Manifold gaskets. Replace vacuum hose on top of engine. Still getting check engine light after resets =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code FORD P0403 Saving Repair...P0401 code problem with Explorer I'm new to the forum and in need of some help. I have read some of the other posts concerning the P0401 DTC. I have a 2002 Explorer with 88K miles. I have had a Service Engine Soon light on for about 4 months.Code P0304 2001 Ford Explorer Description. Misfire is defined as a lack of combustion in a cylinder due to the absence of a spark, incorrect fuel metering, low …Covering the Explorer, ST, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, ... The most frequent codes with a DPFE sensor issue is a P0401 and/or a P0402. ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community.Ford Explorer 2009: Fault Code=P0401 EGR Flow Insufficient. Thread starter Doy Caralos; Start date September 18, 2015; D. Doy Caralos New Member. Joined September 18, 2015 Messages 2 Reaction score 0 City, State Abu Dhabi UAE Year, Model & Trim Level Ford Explorer 2009. September 18, 2015 #1UPDATE on P0401 and P0455 codes OK, so just to catch up on some things that has happened. ... Serious Explorations is a Ford Explorer and Ranger Based vehicle ...

Ford Explorer 2009: Fault Code=P0401 EGR Flow Insufficient. Thread starter Doy Caralos; Start date September 18, 2015; D. Doy Caralos New Member. Joined September 18, 2015 Messages 2 Reaction score 0 City, State Abu Dhabi UAE Year, Model & Trim Level Ford Explorer 2009. September 18, 2015 #1

Diagnosing what is causing the P0401 code in the Explorer is typically not very tricky. Here are the most common causes: 1. Blocked EGR Tube– The tube that carries the exhaust gases back to the motor may clog up over time. Alternatively, it can become bent or kinked. This is especially true if you are … See moreCode P0401 Is Not The Pressure Sensor What Else Could Be That I Need To Change The Egr Valve. Asked by jlstky7061 · 3 ANSWERS. 2001. FORD EXPLORER. Egr Problem Code P0401. I Have A 2004 Ford Explorer 6 Cylinder. I Need To Get The Car Registered, However The Check Engine Light Is On.Find Ford Thailand dealers near you in Bangkok, Phuket, Pattaya, and more! Select your state and city to get a full list of dealers and showrooms near you. The website uses cookies to enable it to perform properly, remember your browsing history and to arrange content to match your preferred interests more quickly.It means that your Ford Explorer ‘s EVAP system has a pressure sensor that is malfunctioning in some way. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap. There can be other causes as well. We’ll cover those directly below.It means that your Ford Explorer ‘s EVAP system has a pressure sensor that is malfunctioning in some way. P0451 is usually caused by either a bad EVAP pressure sensor, a clogged fuel tank relief valve, EVAP lines, EVAP wiring, or a bad fuel cap. There can be other causes as well. We’ll cover those directly below.1997 Ford Explorer P0401 EGR Flow. K_MINER119 MEMBER; 1997 FORD EXPLORER; V8; 2WD; AUTOMATIC; 259,000 MILES; VIN 1FMDU32P2VUA38455 Can not find DPFE that sends code to computer. All suggestions point to replace will fix problem. ... I Have A 2004 Ford Explorer 6 Cylinder. I Need To Get The Car Registered, However The Check …What does this mean? Code P0401 Ford Tech Notes EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Before replacing any parts try cleaning the EGR valve, tube, and passages. If the tubes are clean you may have to replace the EGR Pressure sensor to fix the problem.

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Code P0161 indicates that there is an issue with the Bank 2, Sensor 2 O2 sensor’s heater circuit. What Does the P0161 Code Mean? Diagnostic trouble code (DTC) P0161 stands for “O2 Sensor Heater Circuit Malfunction (Bank 2, Sensor 2).” It warns about an issue with the Bank 2, Sensor 2 oxygen (O2) sensor’s heater circuit.Exhaust Gas Recirculation (EGR) Valve. Remove the parts in the order indicated in the following illustration and table. To remove individual parts, only carry out the listed steps: Part. Steps. Exhaust gas recirculation (EGR) system module. 1-3, 6-8. EGR system module-to-exhaust manifold tube. 3-5.1996 AWD 5.0 L Check Engine light came on yesterday and scanned with Innova 3160 scan tool P0401 - Exhaust Gas Recirc Flow Insufficient Detected There were two P0401 ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community. Founded in 1996, our goal is to support our members with the information …Started with P0401, P0403, P0443, P0455 and finally P0457. ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community. Founded in 1996, our goal is to support our members with the information they need to keep their Explorers, running their best. The forum is free to use with ads, or you can become an Elite …Sep 11, 2018 · It’s an OBD2 code and indicates that your vehicle’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Explorer. Fixing P0301 should be considered a high priority. Unlike a lot of the OBDII codes, this code has to do directly with engine combustion. What does this mean? Code P0401 Ford Tech Notes EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Before replacing any parts try cleaning the EGR valve, tube, and passages. If the tubes are clean you may have to replace the EGR Pressure sensor to fix the problem.The P0401 code means that OBD detected an insufficient amount of EGR. P0402. 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 ...Codes: P0135, P0141, P0155, P0161, P0403 and P0443. I have an issue with all the sensors on the same circuit: all four O2 sensor heaters, EGR and PCV, see picture for codes. I checked the fuse (#42) and it's okay.Started with P0401, P0403, P0443, P0455 and finally P0457. ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community. Founded in 1996, our goal is to support our members with the information they need to keep their Explorers, running their best. The forum is free to use with ads, or you can become an Elite …What does this mean? Code P0401 Ford Tech Notes EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Before replacing any parts try cleaning the EGR valve, tube, and passages. If the tubes are clean you may have to replace the EGR Pressure sensor to fix the problem. Issues within the EGR system can throw off the P0401 OBD-II trouble code. Find out what it means, how it’s diagnosed, and all possible fixes to solve it. Get 10% OFF EVERYTHING . ... P0401 on Some Ford Vehicles. Code P0401 may appear on some Ford vehicles. On a 1999 Ford F-150 5.4L V8, for example, this DTC can be triggered by the …09-29-2010, 07:18 AM JRHEXP New User Thread Starter Join Date: Aug 2004 Posts: 11 Likes: 0 Received 0 Likes on 0 Posts 2004 Explorer P0401 Hey, have a P0401 code. I took the EGR valve off and cleaned the ports but there was no carbon on them or on the tube that goes into the intake.. ….

March 20, 2010. #1. I have a 96 Sport with a 4.0 and 241,000 miles. I had a CEL P0401 for EGR insufficient flow, as well as P0420 Cat Converter Efficiency below threshold. I replaced the valve itself (which now I realize I didnt need to do), and the code came back. I blew out the lines going to the DPFE and a bunch of small **** came out.How to fix Code P0401 on a 2000 Ford Expedition with engine 4.6Jun 8, 2009 · 437 Answers. P0401 = Exhaust Gas Recirculation, insufficient flow. I would start with testing the EGR valve and checking the source line for a vacuum leak. EGR may need to be cleaned. Posted on Jun 08, 2009. 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 ... 09-29-2010, 07:18 AM JRHEXP New User Thread Starter Join Date: Aug 2004 Posts: 11 Likes: 0 Received 0 Likes on 0 Posts 2004 Explorer P0401 Hey, have a P0401 code. I took the EGR valve off and cleaned the ports but there was no carbon on them or on the tube that goes into the intake..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.Apr 5, 2018 · P0401 and p0455. Explorer, Sport Trac, Mountaineer & Aviator 1991-1994, 1995-2001, 2002-2005, 2006-2010 Ford Explorer. The following are the most common symptoms that a Ford (or Mercury or Lincoln) car or truck will usually experience when there's a fault in the EGR system: Car or truck runs fine, but the check engine light (CEL) is on with an EGR Valve Fault Code: P0401 EGR System Flow Insufficient. P01406 EGR Valve Pintle Position. Rough Idle.Pull the egr off, clean the port under it all the way to the throttle plate, I use a length of steel coathanger. Put it all back together, reset the codes, if light comes on again, replace the EGR position sensor, thats the one the two small hoses from the exhaust plug into! SPONSORED LINKS. Was this. 1998 F250 LD 5.4 triton no spark. 1997 - 2003 F150 - HELP!!!!!! P0401 to P0402 - A while back, I had the P0401 code come up on my 2001 Ford F-150 4.6 V-8. The truck would sputter and surge at low speeds. I searched on here for help and then did the following things: Replaced the DPFE Switch Replaced the EGR Valve Removed and … Ford explorer p0401, 2004 Explorer P0401. Hey, have a P0401 code. I took the EGR valve off and cleaned the ports but there was no carbon on them or on the tube that goes into the intake.. I have read that usually it is the DPFE sensor but my truck has the newer style integrated EGR Valve so no seperate DPFE. I called to order a new EGR Valve but the guy at the …, Have DTC Codes on a 2002 ford explorer sport trac p0401 p0171 p0174 System too lean Bank 1 and 2 aready replaced lower intake gaskets what next read a TSB bullitin about how it may be something else … , 1998 Ford Explorer Emissions question. Troubleshooting DTC P0401 (Insufficient EGR flow) in my 1998 Ford Explorer with 6 cyl SOHC 4.0. Have replaced DPS, still throws code after OBDII diagnostics afte … read more, When it comes to choosing a family-friendly SUV, safety is often a top priority for consumers. The Ford Explorer 2024 is packed with advanced safety technologies that provide peace of mind on the road., Diagnosing a P0401 Code. A P0401 code may come from EGR system problems like: Carbon buildup. A loose or damaged vacuum hose. A fault in an electrical circuit. A mechanical failure. It depends on the type and configuration of your vehicle's EGR system and the nature of the fault., 1.8K Share Save 253K views 5 years ago In this video I'll share, by my experience, what has been the three most common causes of P0401 on Ford vehicles with a DPFE EGR system. The definition of..., I had rough running and a P0401 code indicating an EGR valve problem. There is NO separate DPFE on an '05 despite the recommendations in many forums that you replace the DPFE first. There's an EGR systems module (ESM) that incorporates a DPFE. I got the Motorcraft EGR valve (part # CX-2102) from Amazon for $101., Apr 9, 2022 · UPDATE on P0401 and P0455 codes OK, so just to catch up on some things that has happened. ... Serious Explorations is a Ford Explorer and Ranger Based vehicle ... , Buy a new throttle body gasket and EGR gasket, take them off and clean them up well with parts cleaner. 4. Seafoam the engine oil, seafoam the fuel tank, seafoam the intake. 5. replace the fuel filter. 6. replace the …, Easy removal this video is to replace egr and it will fix p0401 code in video I said p0407 it was a mistake good luck ask q,s if u have any, September 6, 2007. 410Fortune. E. Diagnosing DPFE Sensor (P0401 and P0402) with Scan Tool. Hi, My 1996 v8 5.0 is giving the following codes at the same time P0401 Exhaust Gas Recirculation Flow Insufficient and P0402 Exhaust Gas Recirculation Flow Excessive I clear them drive 2 cycles back on., P0401 code definition. Exhaust Gas Recirculation Flow Insufficient Detected. What the P0401 code means. P0401 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas recirculation (EGR) valve is not flowing enough recirculated exhaust gases when it is commanded to open the flow of gases into the intake manifold. , Easy removal this video is to replace egr and it will fix p0401 code in video I said p0407 it was a mistake good luck ask q,s if u have any, Engine code p0401 in 2004 ford explorer 4.0 motor insuficient gas flow detected. Posted by jorgeavila16 on Aug 19, 2010. Want Answer 0. Clicking this will make more ..., If you get P0401 (Insufficient Flow) it doesn't mean your DPFE is defective. If means your DPFE is reporting to the ECM that there is insufficient flow. That's what the DPFE is supposed to do if the flow really is insufficient. The DPFE could also report that flow is good if it is good., Can't fill fuel tank plus codes: P0401 and P115E -- FUEL FILLING ISSUE FIXED Hoping someone can help narrow down my problem. 2007 Explorer XLT. 4.0 V6 This started as a fuel filling problem. The gas pumps kicks off every few seconds. Initially, I thought evap canister or solenoid. Then..., Related: P0135 Ford Explorer. Ford Explorer P0141 Symptoms. Typically, the only symptom of P0141 is going to be the service engine soon light. It should not be considered a breakdown risk. But, like anything that causes the service engine soon light to come on it is a good idea to have it fixed as soon as possible. P0141 Causes: Ford Explorer, 2004 FORD EXPLORER; 181,000 MILES; Check engine lite came it was anevap code Do you. have the same problem? Yes. No. Wednesday, April 17th, 2013 AT 4:38 PM. 2 Replies. ... Egr Problem Code P0401. I Have A 2004 Ford Explorer 6 Cylinder. I Need To Get The Car Registered, ..., VIDEO: Ford Explorer Front Hub and Bearing Growling Noise Repair. 1 / 1. Explorer, Sport Trac, Mountaineer & Aviator - Explorer 4.0 v6 ohv po401 code - I have a 97 explorer I have a po401 code .. I have changed the valve the solenoid and the DPFE ( junk yard DPFE) . the crank sensor , plugs wires coil pk intake gasket iac valve ., Covering the Explorer, ST, Ecoboost, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Register Today It's free! Forums. Generation Specific Forums. 2002 - 2005 Explorer Mountaineer 3rd Generation. Stock 2002 - 2005 Explorers, The P0401 was usually a faulty DPFE sensor (EGR pressure differential sensor). The DPFE sensor could get moisture from condensation in the exhaust system and fail, or the hose from the exhaust bleed fitting could fall off or melt. 5. Oil leaks. Overall the 4.6L Ford engine does not suffer from significant oil leaks., The P0401 DTC means that the computer detected an insufficient amount of exhaust gas recirculation (EGR) flow in the system. In most cases, the ECM/PCM recognizes the failure from two consecutive trips through the feedback loop before setting the code and turning on the Check Engine Light., EGR Valve is defective. 3. 2. answer. 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., Aug 11, 2023 · The P0401 DTC means that the computer detected an insufficient amount of exhaust gas recirculation (EGR) flow in the system. In most cases, the ECM/PCM recognizes the failure from two consecutive trips through the feedback loop before setting the code and turning on the Check Engine Light. , Oct 8, 2010 · Ford Master. 6,826 Answers. P0401 Exhaust Gas Recirculation Flow Insufficient Detected. Remove the EGR valve and clean up passage ways using spray on carburetor/fuel injector cleaner. Posted on Oct 08, 2010. , Feb 25, 2015 · Can't fill fuel tank plus codes: P0401 and P115E -- FUEL FILLING ISSUE FIXED Hoping someone can help narrow down my problem. 2007 Explorer XLT. 4.0 V6 This started as a fuel filling problem. The gas pumps kicks off every few seconds. Initially, I thought evap canister or solenoid. Then... , Oct 20, 2011 · I had rough running and a P0401 code indicating an EGR valve problem. There is NO separate DPFE on an '05 despite the recommendations in many forums that you replace the DPFE first. There's an EGR systems module (ESM) that incorporates a DPFE. I got the Motorcraft EGR valve (part # CX-2102) from Amazon for $101. , P0401 to P0402 / 96 Explorer 5.0. ejscarfo; March 21, 2011; Stock 1995 - 2001 Explorers; 2. Replies 23 Views 9,070. April 4, 2011. jremington59. J. P0401, P0402, P1405 - Bad EGR Hose? shadowless127; ... Serious Explorations is a Ford Explorer and Ranger Based vehicle community. Founded in 1996, our goal is to support our members …, Sep 13, 2017 · Solved - P0401 EGR Flow Insufficient Detected | Ford Explorer Forums - Serious Explorations. Performance Upgrades - Maintenance - Modifications - Problem Solving. Covering the Explorer, ST, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Register Today It's free! , Nov 3, 2016 · ford explorer 2010. November 3, 2016. #1. hi all, today morning when i got work , noticed check engine light, i used scan tool to see this issue and it was P0401 code, i searched about this code an its mean Exhaust Gas Recirculation Flow Insufficient Detected. my car is 150K miles and well maintained , spark plugs, fuel filter, air filter, and ... , Jan 4, 2010 · If you get P0401 (Insufficient Flow) it doesn't mean your DPFE is defective. If means your DPFE is reporting to the ECM that there is insufficient flow. That's what the DPFE is supposed to do if the flow really is insufficient. The DPFE could also report that flow is good if it is good. , Oct 3, 2009 · We have a 2002 Ford Explorer, after my last gas fill-up our check engine light come on. We ran a diagonistic test and got the code DTC P0401 (Exhaust gas recirculation flow insufficient detected). Aft … , Ford: One of the common problems with many Ford vehicles that can cause the trouble code P0401 is a bad or damaged DPFE sensor (DPFE stands for Delta Pressure Feedback EGR). When diagnosing the code P0401 on a Ford vehicle, the DPFE sensor and the hoses to the DPFE sensor are usually tested first. The DPFE sensor and its hoses …