The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening." property="og:description">
For Shop Owners

P0401 LINCOLN - Exhaust Gas Recirculation Flow Insufficient Detected

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3 What does this mean?

Possible causes

  • EGR passage clogged
  • Faulty EGR Vacuum Modulator Valve
  • Faulty EGR Valve
  • Faulty EGR solenoid valve
  • EGR solenoid valve harness is open or shorted
  • EGR solenoid valve circuit poor electrical connection
  • Dead (Weak) battery
  • Faulty EGR temperature sensor and circuit
  • Exhaust gas leaks
What does this mean?

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.

There is a factory service bulletin for the following Lincoln models:

2001-2002 Lincoln Town Car






User Submitted Video
What does this mean?

When is the code detected?

Low EGR flow control is detected

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible engine hesitation

P0401 LINCOLN Description

Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) Controlled Vacuum Switch Valve or EGR Solenoid and an EGR Vacuum Μodulator. Depending on the engine and driving conditions, the ECΜ will control the EGR Solenoid which will operate the EGR Vacuum Μodulator to regulate the opening and closing of the EGR Valve.

The EGR system on recently built vehicles uses a step motor to control the flow rate of EGR from exhaust manifold. This motor has four winding phases. It operates according to the output pulse signal of the ECΜ. Two windings are turned ON and OFF in sequence. Each time an ON pulse is issued, the valve opens or closes, changing the flow rate. When no change in the flow rate is needed, the ECΜ does not issue the pulse signal. Α certain voltage signal is issued so that the valve remains at that particular opening.

OBDII Code P0401 Lincoln - Exhaust Gas Recirculation Flow Insufficient Detected - itimaster.ru

Need more help?

Do you need more help with the P0401 Lincoln code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code

P0401 LINCOLN Comments

Help us improve itimaster.ru. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0401 Lincoln code? Have you replaced any parts?
Any information is appreciated. Thanks
Repair Importance Level: 2
1=Low 2=Medium 3=High
Repair Difficulty Level: 2
1=Easy 2=Moderate 3=Hard

Browse All Codes For Specific Model YearBeta
Ford F150 1998 Ford F150
1999 Ford F150
2000 Ford F150
2001 Ford F150
2002 Ford F150
2003 Ford F150
Ford Fusion 2006 Ford Fusion
2007 Ford Fusion
2008 Ford Fusion
2009 Ford Fusion
2010 Ford Fusion
2011 Ford Fusion
2012 Ford Fusion
Honda Accord 2008 Honda Accord
2009 Honda Accord
2010 Honda Accord
Honda Civic 1996 Honda Civic
1997 Honda Civic
1998 Honda Civic
1999 Honda Civic
2000 Honda Civic
Infiniti G35 2003 Infiniti G35
2004 Infiniti G35
2005 Infiniti G35
2006 Infiniti G35
Nissan Altima 2002 Nissan Altima
2003 Nissan Altima
2004 Nissan Altima
2005 Nissan Altima
2006 Nissan Altima
2008 Nissan Altima
2009 Nissan Altima
2010 Nissan Altima
2011 Nissan Altima
2012 Nissan Altima
Nissan Maxima 2005 Nissan Maxima
2006 Nissan Maxima
2007 Nissan Maxima
2008 Nissan Maxima
Nissan Pathfinder 2005 Nissan Pathfinder
2006 Nissan Pathfinder
2007 Nissan Pathfinder
2008 Nissan Pathfinder
2009 Nissan Pathfinder
2010 Nissan Pathfinder
2011 Nissan Pathfinder
2012 Nissan Pathfinder
Nissan Rogue 2008 Nissan Rogue
2009 Nissan Rogue
2010 Nissan Rogue
2011 Nissan Rogue
2012 Nissan Rogue
2013 Nissan Rogue
Nissan Sentra 2002 Nissan Sentra
2003 Nissan Sentra
2004 Nissan Sentra
2005 Nissan Sentra
2006 Nissan Sentra
2007 Nissan Sentra
2008 Nissan Sentra
2009 Nissan Sentra
2010 Nissan Sentra
2011 Nissan Sentra
2012 Nissan Sentra
Toyota Camry 1997 Toyota Camry
1998 Toyota Camry
1999 Toyota Camry
2000 Toyota Camry
2001 Toyota Camry
2006 Toyota Camry
2007 Toyota Camry
2008 Toyota Camry
2009 Toyota Camry
2010 Toyota Camry
2011 Toyota Camry
Toyota Corolla 2005 Toyota Corolla
Toyota Echo 2000 Toyota Echo
2001 Toyota Echo
2002 Toyota Echo
Toyota Highlander 2001 Toyota Highlander
2002 Toyota Highlander
2003 Toyota Highlander
2004 Toyota Highlander
2005 Toyota Highlander
2006 Toyota Highlander
2007 Toyota Highlander
Toyota Prius 2004 Toyota Prius
2005 Toyota Prius
2006 Toyota Prius
2007 Toyota Prius
2008 Toyota Prius
2009 Toyota Prius
Scion xB 2005 Scion xB
2006 Scion xB
2007 Scion xB
Advertisement
Home - For Shop Owners - About itimaster.ru - Privacy Policy - Terms and Conditions - - Copyright 2010-2018 itimaster.ru
itimaster.ru - - - -
Posted and Edit by 06-14-2015

Related pages


2001 gmc jimmy enginehow many cylinders does a mazda rx8 have2005 nissan altima transmission fluid2005 pontiac grand prix transmission problemsmazda 626 intake manifoldintake timing control valve solenoid valveford f150 fuel pump driver moduleevap code p0441p0118 vwtrouble code p03022008 ford escape starting problemsinfiniti q56 2007evap purge solenoid testwhat happens when cam sensor goes bad2007 ford expedition spark plugs99 suburban catalytic converterengine code p0456what does code p0301 meangmc service bulletinsvolvo torque converter98 camry exhaust systemoxygen sensor troubleshooting1999 dodge ram 1500 pcm7.3 gem module5.7 hemi oil pressure sensor locationwhat is accelerator pedal position sensorcode p01742000 lexus rx300 timing beltlexus rx300 knock sensor07 saturn auramercedes transmission codes2004 cadillac srx transmissiontoyota corolla fuel injectortoyota echo key2000 infiniti q302000 ford focus ignition coilnissan altima catalytic converter problemshonda vtec systemscion xb air filtere39 o2 sensor2005 toyota corolla airbag light on2003 lincoln ls catalytic converterpt cruiser trouble codesp0420 catalystp0113 error code2000 nissan frontier distributor2002 chevy suburban transmission problemsdodge dakota transmission slippingtoyota corolla 2006 starterpassat tdi torque2006 chevy impala ss transmission problemsbmw obd ii2001 dodge dakota clock springfuel pump nissan altima 2006honda dtc1998 saturn sl2 enginechrysler 300 2.7 engine problemssaab steering wheel malfunction1998 honda accord transmission slippingtrouble code p0421how to fix random misfirecode po174mazda 6 check engine light codessmall leak in evap system2006 cadillac cts engine problemsacura mdx 2003 transmission problemstoyota prius vin decoderscion xa battery2003 ford f150 exhaust manifoldengine misfire causeho2s s1 heater failuremercedes benz engine codes2000 camry check engine lightcar error code p0420vsc light lexus rx 350what is evaporative emission system leak