DPFE Check Engine Code

SlideWitMe · #1 11-07-2003, 04:34 PM

My sister owns a 1999 Grand Marquis.

Her car started throwing a CEL. The code was... blah... ok I lost the code, but I think it was P014 - DPFE Upper Hose Blocked or Disconnected. I'm thinking that this is simply the DPFE sensor gone bad, but just wanted to verify that here.

I was able to clear the CEL by resetting the ECU which only worked for about a week, the CEL is now back, but with a rough idle. Sounds pretty typical of a bad DPFE sensor.

What do you guys think?

ALSO... there's a light ticking comming from the rear passenger side of the motor. The ticking is only noticible while the motor is under load, under acceleration... a.k.a giving it gas while it's in gear. I thought maybe "lifter tick" but I always thought lifter tick was constant, not just under acceleration.

butcher8811 · #2 03-18-2004, 09:45 AM

The code has a diagnostic routine associated with it that has to
be followed. "Replace DPFEGR sensor" is several steps down the
tree. Replacing this $100+ sensor first without following the initial
steps of the diagnostic tree would be like skipping the first 10 rungs
of a ladder. I had the same code you did on my 2001, the technician followed every step in the routine and the problem did turn out to
be a bad DPFEGR sensor. He replaced it, problem gone. It happens frequently enough that there's a technical service bulletin out on it.
Provided that below. Hope it helps. Mike

Emissions - MIL ON/Possible DTC's/Driveability Issues
Article No.
03-22-3

11/10/03

DRIVEABILITY - STREAMLINED DIAGNOSTIC
PROCEDURE FOR VEHICLES WITH MIL ON AND
DTCS P0401, P0402, P1400 OR P1401 - ADDITIONAL
SYMPTOMS MAY INCLUDE RUNS ROUGH, LACKS
POWER, SURGE, POOR FUEL ECONOMY

FORD:
2000-2002 TAURUS
2001-2002 CROWN VICTORIA, FOCUS, MUSTANG
2001 EXPLORER USPS
2001-2002 E SERIES, ESCAPE, EXPEDITION, EXPLORER SPORT TRAC,
EXPLORER SPORT, F-150, RANGER, WINDSTAR
2002 EXPLORER

LINCOLN:
2001-2002 TOWN CAR

MERCURY:
2000-2002 SABLE
2001-2002 COUGAR, GRAND MARQUIS
2002 MOUNTAINEER

This article supersedes TSB 03-6-1 to update service procedures, labor operations and part information.

ISSUE

Some vehicles may exhibit a Malfunction Indicator Lamp (MIL) "ON" with or without the following symptoms: Rough Running, Lack of Power, Surge or Poor Fuel Economy, along with Diagnostic Trouble Codes (DTC's) P0401, P0402, P1400 or P1401. This may be caused by an intermittently functioning Tube-Mounted Delta Pressure Feedback EGR (DPFE) Sensor (Figure 1).

ACTION

An improved Tube-Mounted EGR Pressure Sensor Kit (9J460) is being phased in to cover selected vehicle applications. Consult the Part Application Chart below. An instruction sheet is included with this kit.

NOTE AN IMPROVED SENSOR WILL BE AVAILABLE FOR ALL VEHICLES EQUIPPED WITH TUBE-MOUNTED DPFE SENSORS IN THE FIRST QUARTER OF 2004.

For vehicles equipped with a Tube-Mounted DPFE Sensor, perform the following diagnostic procedure and repair action. This procedure supersedes the diagnostic procedure in the PC/ED Manual for the issue described above.

NOTE THE LABOR TIME HAS CHANGED TO REFLECT THE ADDITION OF A KEY ON ENGINE RUNNING (KOER) SELF TEST AFTER THE REPAIR.

NOTE THIS ARTICLE APPLIES TO THE FULL MODEL YEAR FOR ALL VEHICLES LISTED EXCEPT THE FOLLOWING

^ 2002 Taurus/Sable 3.0L DOHC Built After May 2002

^ 2002 Taurus/Sable 3.0L OHV - Built After February 2002

^ 2002 Econoline And F-150 4.2L OHV - Built After April 9, 2002

SERVICE PROCEDURE

1. Retrieve continuous DTC(s).

2. If P0401, P0402, P1400 or P1401 are present, turn ignition OFF and replace the DPFE sensor.

3. Clear continuous DTC(s).

4. Perform key On Engine Off (KOEO) and key On Engine Running (KOER) Self-Test.

Labor Operation Claiming Chart

Parts Block

OTHER APPLICABLE ARTICLES: None

SUPERSEDES: 03-6-1

WARRANTY STATUS: Eligible Under The Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage

DEALER CODING
CONDITION
BASIC PART NO. CODE
9J460 42

Disclaimer

Copyright © 2004 ALLDATA LLC
Terms of Use

butcher8811 · #3 03-18-2004, 09:49 AM

That car is know for having loud fuel injectors. Sounds like
a ticking sound under load. It's a possibility.

Quote:

Originally Posted by SlideWitMe

My sister owns a 1999 Grand Marquis.

Her car started throwing a CEL. The code was... blah... ok I lost the code, but I think it was P014 - DPFE Upper Hose Blocked or Disconnected. I'm thinking that this is simply the DPFE sensor gone bad, but just wanted to verify that here.

I was able to clear the CEL by resetting the ECU which only worked for about a week, the CEL is now back, but with a rough idle. Sounds pretty typical of a bad DPFE sensor.

What do you guys think?

ALSO... there's a light ticking comming from the rear passenger side of the motor. The ticking is only noticible while the motor is under load, under acceleration... a.k.a giving it gas while it's in gear. I thought maybe "lifter tick" but I always thought lifter tick was constant, not just under acceleration.

SlideWitMe · #4 03-18-2004, 01:33 PM

Hey, Thanks for the info. That will help for future reference.

The car has since been fixed for exactly that problem, DPFE Sensor, but I'm sure I'll be referring back to this article.

The "ticking" actually wasn't as bad after it was fixed although it's still there.

:: shrugs ::

Thanks again.

ugothim · #5 02-02-2005, 01:27 PM

Quote:

Originally Posted by butcher8811

The code has a diagnostic routine associated with it that has to
be followed. "Replace DPFEGR sensor" is several steps down the
tree. Replacing this $100+ sensor first without following the initial
steps of the diagnostic tree would be like skipping the first 10 rungs
of a ladder. I had the same code you did on my 2001, the technician followed every step in the routine and the problem did turn out to
be a bad DPFEGR sensor. He replaced it, problem gone. It happens frequently enough that there's a technical service bulletin out on it.
Provided that below. Hope it helps. Mike

Emissions - MIL ON/Possible DTC's/Driveability Issues
Article No.
03-22-3

11/10/03

DRIVEABILITY - STREAMLINED DIAGNOSTIC
PROCEDURE FOR VEHICLES WITH MIL ON AND
DTCS P0401, P0402, P1400 OR P1401 - ADDITIONAL
SYMPTOMS MAY INCLUDE RUNS ROUGH, LACKS
POWER, SURGE, POOR FUEL ECONOMY

FORD:
2000-2002 TAURUS
2001-2002 CROWN VICTORIA, FOCUS, MUSTANG
2001 EXPLORER USPS
2001-2002 E SERIES, ESCAPE, EXPEDITION, EXPLORER SPORT TRAC,
EXPLORER SPORT, F-150, RANGER, WINDSTAR
2002 EXPLORER

LINCOLN:
2001-2002 TOWN CAR

MERCURY:
2000-2002 SABLE
2001-2002 COUGAR, GRAND MARQUIS
2002 MOUNTAINEER

This article supersedes TSB 03-6-1 to update service procedures, labor operations and part information.

ISSUE

Some vehicles may exhibit a Malfunction Indicator Lamp (MIL) "ON" with or without the following symptoms: Rough Running, Lack of Power, Surge or Poor Fuel Economy, along with Diagnostic Trouble Codes (DTC's) P0401, P0402, P1400 or P1401. This may be caused by an intermittently functioning Tube-Mounted Delta Pressure Feedback EGR (DPFE) Sensor (Figure 1).

ACTION

An improved Tube-Mounted EGR Pressure Sensor Kit (9J460) is being phased in to cover selected vehicle applications. Consult the Part Application Chart below. An instruction sheet is included with this kit.

NOTE AN IMPROVED SENSOR WILL BE AVAILABLE FOR ALL VEHICLES EQUIPPED WITH TUBE-MOUNTED DPFE SENSORS IN THE FIRST QUARTER OF 2004.

For vehicles equipped with a Tube-Mounted DPFE Sensor, perform the following diagnostic procedure and repair action. This procedure supersedes the diagnostic procedure in the PC/ED Manual for the issue described above.

NOTE THE LABOR TIME HAS CHANGED TO REFLECT THE ADDITION OF A KEY ON ENGINE RUNNING (KOER) SELF TEST AFTER THE REPAIR.

NOTE THIS ARTICLE APPLIES TO THE FULL MODEL YEAR FOR ALL VEHICLES LISTED EXCEPT THE FOLLOWING

^ 2002 Taurus/Sable 3.0L DOHC Built After May 2002

^ 2002 Taurus/Sable 3.0L OHV - Built After February 2002

^ 2002 Econoline And F-150 4.2L OHV - Built After April 9, 2002

SERVICE PROCEDURE

1. Retrieve continuous DTC(s).

2. If P0401, P0402, P1400 or P1401 are present, turn ignition OFF and replace the DPFE sensor.

3. Clear continuous DTC(s).

4. Perform key On Engine Off (KOEO) and key On Engine Running (KOER) Self-Test.

Labor Operation Claiming Chart

Parts Block

OTHER APPLICABLE ARTICLES: None

SUPERSEDES: 03-6-1

WARRANTY STATUS: Eligible Under The Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage

DEALER CODING
CONDITION
BASIC PART NO. CODE
9J460 42

Disclaimer

Copyright © 2004 ALLDATA LLC
Terms of Use

I am having the same problem with my 2002 sable which luckily is still under warranty, i have an appointment on FRIDAY morning to have it checked and i was able to get the car put on the machine without paying ANY diagnostic fee ! and the parts are under warranty.i WILL reply back as soon as the car is repaired and let you all know if it was caused by anything other than what is posted here !. and to BUTCHER..it's good people like you that makes this country GREAT...THANKS !!

mrfix · #6 02-02-2006, 09:43 AM

My wife's 2002 Sable is having a similar problem. Rough idle on startup and "Check Engine Light" flashing. Does this vehicle need a special diagnostic tool to read the engine codes? If so, where would I get a good one and about how much do they cost? Thanks

fabricator@cynical · #7 03-14-2006, 10:49 PM

Quote:

Originally Posted by mrfix

My wife's 2002 Sable is having a similar problem. Rough idle on startup and "Check Engine Light" flashing. Does this vehicle need a special diagnostic tool to read the engine codes? If so, where would I get a good one and about how much do they cost? Thanks

Autozone will do it for free.

mrfix · #8 03-15-2006, 08:04 AM

I took the car to AutoZone and they got an error code that indicated a misfire on one of the cylinders. I checked and replaced the spark plugs. The old ones were quite worn. The car has only about 45000 miles on it. Seems odd to see such wear (on all the plugs) with so few miles. I replaced the plugs and have had no problem since.

fabricator@cynical · #9 03-15-2006, 12:42 PM

Sounds great, mrfix!

scpalazzo · #10 10-24-2007, 11:11 PM

I have a 2002 Tarus with a P0402 code. I changed the EGR valve and EGR senor. After each I disconnected the battery to reset the light. But the light keeps going back on.
The car has been running smooth but I can't pass inspection.
Any Help?
Thanks
Steve

Quote:

Originally Posted by butcher8811

The code has a diagnostic routine associated with it that has to
be followed. "Replace DPFEGR sensor" is several steps down the
tree. Replacing this $100+ sensor first without following the initial
steps of the diagnostic tree would be like skipping the first 10 rungs
of a ladder. I had the same code you did on my 2001, the technician followed every step in the routine and the problem did turn out to
be a bad DPFEGR sensor. He replaced it, problem gone. It happens frequently enough that there's a technical service bulletin out on it.
Provided that below. Hope it helps. Mike

Emissions - MIL ON/Possible DTC's/Driveability Issues
Article No.
03-22-3

11/10/03

DRIVEABILITY - STREAMLINED DIAGNOSTIC
PROCEDURE FOR VEHICLES WITH MIL ON AND
DTCS P0401, P0402, P1400 OR P1401 - ADDITIONAL
SYMPTOMS MAY INCLUDE RUNS ROUGH, LACKS
POWER, SURGE, POOR FUEL ECONOMY

FORD:
2000-2002 TAURUS
2001-2002 CROWN VICTORIA, FOCUS, MUSTANG
2001 EXPLORER USPS
2001-2002 E SERIES, ESCAPE, EXPEDITION, EXPLORER SPORT TRAC,
EXPLORER SPORT, F-150, RANGER, WINDSTAR
2002 EXPLORER

LINCOLN:
2001-2002 TOWN CAR

MERCURY:
2000-2002 SABLE
2001-2002 COUGAR, GRAND MARQUIS
2002 MOUNTAINEER

This article supersedes TSB 03-6-1 to update service procedures, labor operations and part information.

ISSUE

Some vehicles may exhibit a Malfunction Indicator Lamp (MIL) "ON" with or without the following symptoms: Rough Running, Lack of Power, Surge or Poor Fuel Economy, along with Diagnostic Trouble Codes (DTC's) P0401, P0402, P1400 or P1401. This may be caused by an intermittently functioning Tube-Mounted Delta Pressure Feedback EGR (DPFE) Sensor (Figure 1).

ACTION

An improved Tube-Mounted EGR Pressure Sensor Kit (9J460) is being phased in to cover selected vehicle applications. Consult the Part Application Chart below. An instruction sheet is included with this kit.

NOTE AN IMPROVED SENSOR WILL BE AVAILABLE FOR ALL VEHICLES EQUIPPED WITH TUBE-MOUNTED DPFE SENSORS IN THE FIRST QUARTER OF 2004.

For vehicles equipped with a Tube-Mounted DPFE Sensor, perform the following diagnostic procedure and repair action. This procedure supersedes the diagnostic procedure in the PC/ED Manual for the issue described above.

NOTE THE LABOR TIME HAS CHANGED TO REFLECT THE ADDITION OF A KEY ON ENGINE RUNNING (KOER) SELF TEST AFTER THE REPAIR.

NOTE THIS ARTICLE APPLIES TO THE FULL MODEL YEAR FOR ALL VEHICLES LISTED EXCEPT THE FOLLOWING

^ 2002 Taurus/Sable 3.0L DOHC Built After May 2002

^ 2002 Taurus/Sable 3.0L OHV - Built After February 2002

^ 2002 Econoline And F-150 4.2L OHV - Built After April 9, 2002

SERVICE PROCEDURE

1. Retrieve continuous DTC(s).

2. If P0401, P0402, P1400 or P1401 are present, turn ignition OFF and replace the DPFE sensor.

3. Clear continuous DTC(s).

4. Perform key On Engine Off (KOEO) and key On Engine Running (KOER) Self-Test.

Labor Operation Claiming Chart

Parts Block

OTHER APPLICABLE ARTICLES: None

SUPERSEDES: 03-6-1

WARRANTY STATUS: Eligible Under The Provisions Of New Vehicle Limited Warranty Coverage And Emissions Warranty Coverage

DEALER CODING
CONDITION
BASIC PART NO. CODE
9J460 42

Disclaimer

Copyright © 2004 ALLDATA LLC
Terms of Use

scpalazzo · #11 11-21-2007, 07:32 PM

I changed both the EGR valve and sensor and light continues to come back on?

Any other ideas outside of paying someone 300 -800 dollars???

swedish · #12 06-01-2008, 08:35 PM

Is it safe to replace this part myself on a 2002 ohv (vulcan) (as in it won't cause more problems)? I don't want to mess up a pressurized system...

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