More DPFE Sensor information (updated with photos) - The Ford Focus Forum

**ax0n** · 07-11-2005, 04:47 PM

http://www.focushacks.com/index.php?modid=80

I added some more information from the few recent threads we've had, and I also added pictures to help identify components of the EGR system, and illustrations for the work-arounds.

**Decepticon_Zetec** · 07-12-2005, 04:00 AM

very well done.

**ax0n** · 07-12-2005, 08:56 AM

I do need a photo of the new style DPFE though... If anyone has one, that'd be great. Of the 3 Focaljet members parked in my parking lot yesterday, not a one of them had the new style DPFE (and one was an '03 ZX3

)

**Jaspo** · 07-12-2005, 09:10 AM

I think you may be having a hard time finding the 'new style' DPFE because that style was only used on the 2001's. As I understand it, the 01's were the only year to have the DPFE sensor that mounts directly to the EGR tube. All the others have what I think you are calling the 'old style' (firewall mount).

Anyhow, I have one of the failed 01 DPFE's in a drawer. The replacement Ford now sells is a modified firewall style. I can get you pics if you want them. Tell me what you need and I'll take 'em.

**ax0n** · 07-12-2005, 09:20 AM

Quote:

I think you may be having a hard time finding the 'new style' DPFE because that style was only used on the 2001's. As I understand it, the 01's were the only year to have the DPFE sensor that mounts directly to the EGR tube. All the others have what I think you are calling the 'old style' (firewall mount).

Anyhow, I have one of the failed 01 DPFE's in a drawer. The replacement Ford now sells is a modified firewall style. I can get you pics if you want them. Tell me what you need and I'll take 'em.

That explains why Soundq has the only Focus I've seen the boxier style on. I wanted a pic of the '01 DPFE sensor in it's location, mainly. Thanks for the update, I'll fix my documentation.

**boosted00focuszx3** · 07-12-2005, 09:47 AM

New style? My fiances 01 zx3 had one that connected to the to the hoses right near the egr lines. That one went and they gave her even a smaller one that mounted in the same place

http://slackerserver.com/uploaded/dpfe.JPG

I can probley get a pic of them all, if i didnt toss them out. I know i have the revised replacment one from ford in fall 04 since its still on her car and mine from my 00 (Firewall style one).

Edit: I linked it. Way too huge for FJ. 800px wide max, 600px tall max, please.

**speedy_zx3** · 07-12-2005, 11:07 AM

speaking of pics, can you please resize that one to the "allowed" size...

**GapBoyPCS** · 07-12-2005, 05:38 PM

Quote:

I do need a photo of the new style DPFE though... If anyone has one, that'd be great. Of the 3 Focaljet members parked in my parking lot yesterday, not a one of them had the new style DPFE (and one was an '03 ZX3

)

Go nuts, aXon (you many want to do the "Save As" because I'm not sure when I'll take down the images):

New DPFE:

New DPFE versus "revised DPFE":

Where the newest DPFE mount will mount (the "new" sensor is already on the two tubes - the old one that was replaced by my dealership is sitting atop the valve cover with harness):

**carbonbullet** · 07-12-2005, 07:15 PM

Great info so far, but I'm a little confused...do all new placement DPFE's from Ford mount the way that is shown, or does that only apply to the 01's? So, if I replace the DPFE on my 2000, the firewall mount isn't used anymore? Sorry about this, just confused a bit.

**GapBoyPCS** · 07-12-2005, 08:34 PM

Quote:

Great info so far, but I'm a little confused...do all new placement DPFE's from Ford mount the way that is shown, or does that only apply to the 01's? So, if I replace the DPFE on my 2000, the firewall mount isn't used anymore? Sorry about this, just confused a bit.

The early 2000 and some 2001 models have the DPFE mounted on the firewall.

The repair procedure from Ford specifies not mounting it on the firewall. It just "sits' there on top of the tubes.

**carbonbullet** · 07-16-2005, 05:23 PM

I went to the dealer today and asked for the DPFE for my car...it looked just like the new style part posted above, but when I got home, I realized that the wiring harness connector was not even close to fitting. I went back to the dealer, and he pulled out another DPFE that he said was the older style, but it fit; the downside: it cost $80, versus the $40 for the new style

**Jibberish18** · 07-26-2005, 06:56 AM

Quote:

I went to the dealer today and asked for the DPFE for my car...it looked just like the new style part posted above, but when I got home, I realized that the wiring harness connector was not even close to fitting. I went back to the dealer, and he pulled out another DPFE that he said was the older style, but it fit; the downside: it cost $80, versus the $40 for the new style

Well that sucks. What year Focus do you have? Oh wait you have a 2000. Sorry. I'm gonna see if I can use that one on my 2000. I'll let you know in a few days.

**stevoman098** · 07-26-2005, 10:28 AM

I work in a parts dept. and we go through buttloads of those sensors, like one-two every day and its a fairly small dealership

**Jibberish18** · 08-02-2005, 06:15 PM

I went to the dealer today to see if how much a DPFE sensor would be. I didn't need one but I wasn't sure if the one I got off of ebay was made for the Focus ( I think it is. I'll have to check) Well it showed in his system that my car should use the new redesigned and smaller sensor but the connectors were clearly different. So he just gave me the same model I had. And for waiting so patiently for him to assist me he gave me the sensor for $42 instead of $80. =) Made it out to Checker Cab. LOL. Good things come to those who wait I guess.

**airforcefocus** · 08-28-2005, 04:30 PM

Here are a few pics of the inside of the DPFE and what it may look like in a failure. Hot exhaust gas on electronics is bad...MMMkayy?
\

**Robsteeler66** · 11-02-2005, 12:51 PM

I have a question. Isn't this covered under warranty? My powertrain warranty is still in effect, I won't bother going in if it's not covered-I'll change it myself.

**ax0n** · 11-02-2005, 12:57 PM

They won't replace it under warranty until the CEL comes on and the OBD-II code specifically says "Insufficient EGR Flow" or something to that effect. That takes a LONG time from the time it starts to fail. That means you go a long time with a lot of crappy mileage and driveability before they'll replace it free. If you feel like waiting it out, be my guest. Not to rain on your parade, but you'll probably be well out of warranty by the time that happens.

**Robsteeler66** · 11-02-2005, 01:04 PM

Thanks! I looked up an online parts dealer and I don't see DPFE listed in the egr system. Could this be called a "pressure feedback sensor"?if not maybe I can search by part number. Do you know what it is?

**TheCondor** · 11-03-2005, 03:19 PM

Quote:

They won't replace it under warranty until the CEL comes on and the OBD-II code specifically says "Insufficient EGR Flow" or something to that effect. That takes a LONG time from the time it starts to fail. That means you go a long time with a lot of crappy mileage and driveability before they'll replace it free. If you feel like waiting it out, be my guest. Not to rain on your parade, but you'll probably be well out of warranty by the time that happens.

I got a p0402 code the other day, after my CEL light came on. I have 56K on the odometer. Anyone know if I am under waranty?

**ax0n** · 11-03-2005, 03:24 PM

Factory warranty is 36k, 3 years whichever comes first. You're out. P0402 is almost always the DPFE sensor problem though.

**TheCondor** · 11-03-2005, 04:23 PM

So do you think I should just go and replace the sensor? Or the EGR valve?

**Robsteeler66** · 11-03-2005, 04:39 PM

Does anyone know? Is this called a pressure feedback sensor? Nobody answered my last post.

**ax0n** · 11-03-2005, 04:44 PM

Yes it's the Delta Pressure Feedback of EGR (DPFE) Sensor.

**ax0n** · 11-03-2005, 04:47 PM

Quote:

So do you think I should just go and replace the sensor? Or the EGR valve?

Official fix is to replace the DPFE sensor. Supposedly in like 2003 or so they revamped the design so that it didn't fail as fast, but I've still seen them fail. I simply have the whole thing (DPFE and EGR) Disabled with my FocusSport/SCT chip, but before that I was using "Workaround #2" from the DPFE/EGR Info article listed on Focushacks.

**neverlift35** · 11-11-2005, 10:10 AM

So where is the best place to mount the new DPFE? It seems Ford moved it closer to the heat source in 2001. Why would they do that? Or is heat not the main problem with failures?

I am getting a P0401 so i need to narrow down whether my problem is the DPFE or the Vacuum Regulator Solenoid. It would be nice to try to mount the sensor in the best place.

Great Thread! It will save me a few headaches in diagnosing my check engine code.

07-11-2005, 04:47 PM	#1 (permalink)
ax0n Devil's Advocate. Just to cheese you off. Join Date: Oct 2000 Location: In ur srvrz patchin ur krnlz Posts: 24,445	More DPFE Sensor information (updated with photos) http://www.focushacks.com/index.php?modid=80 I added some more information from the few recent threads we've had, and I also added pictures to help identify components of the EGR system, and illustrations for the work-arounds.

07-12-2005, 04:00 AM	#2 (permalink)
Decepticon_Zetec Moderator Join Date: Feb 2003 Location: 435 not 801 but 435. Posts: 3,108	Re: More DPFE Sensor information (updated with photos) very well done.

07-12-2005, 08:56 AM	#3 (permalink)
ax0n Devil's Advocate. Just to cheese you off. Join Date: Oct 2000 Location: In ur srvrz patchin ur krnlz Posts: 24,445	Re: More DPFE Sensor information (updated with photos) I do need a photo of the new style DPFE though... If anyone has one, that'd be great. Of the 3 Focaljet members parked in my parking lot yesterday, not a one of them had the new style DPFE (and one was an '03 ZX3 )

07-12-2005, 09:10 AM	#4 (permalink)
Jaspo Rookie Join Date: Nov 2004 Posts: 20	Re: More DPFE Sensor information (updated with photos) I think you may be having a hard time finding the 'new style' DPFE because that style was only used on the 2001's. As I understand it, the 01's were the only year to have the DPFE sensor that mounts directly to the EGR tube. All the others have what I think you are calling the 'old style' (firewall mount). Anyhow, I have one of the failed 01 DPFE's in a drawer. The replacement Ford now sells is a modified firewall style. I can get you pics if you want them. Tell me what you need and I'll take 'em.

07-12-2005, 09:47 AM	#6 (permalink)
boosted00focuszx3 Senior TEAM Member Join Date: Jan 2005 Location: West Granby, CT Posts: 3,809	Re: More DPFE Sensor information (updated with photos) New style? My fiances 01 zx3 had one that connected to the to the hoses right near the egr lines. That one went and they gave her even a smaller one that mounted in the same place http://slackerserver.com/uploaded/dpfe.JPG I can probley get a pic of them all, if i didnt toss them out. I know i have the revised replacment one from ford in fall 04 since its still on her car and mine from my 00 (Firewall style one). Edit: I linked it. Way too huge for FJ. 800px wide max, 600px tall max, please.

07-12-2005, 11:07 AM	#7 (permalink)
speedy_zx3 Senior TEAM Member Join Date: Jan 2001 Location: (Trev) Sacramento, California Posts: 4,101	Re: More DPFE Sensor information (updated with photos) speaking of pics, can you please resize that one to the "allowed" size...

07-12-2005, 07:15 PM	#9 (permalink)
carbonbullet Rookie Join Date: Jul 2005 Posts: 32	Re: More DPFE Sensor information (updated with photos) Great info so far, but I'm a little confused...do all new placement DPFE's from Ford mount the way that is shown, or does that only apply to the 01's? So, if I replace the DPFE on my 2000, the firewall mount isn't used anymore? Sorry about this, just confused a bit.

07-16-2005, 05:23 PM	#11 (permalink)
carbonbullet Rookie Join Date: Jul 2005 Posts: 32	Re: More DPFE Sensor information (updated with photos) I went to the dealer today and asked for the DPFE for my car...it looked just like the new style part posted above, but when I got home, I realized that the wiring harness connector was not even close to fitting. I went back to the dealer, and he pulled out another DPFE that he said was the older style, but it fit; the downside: it cost $80, versus the $40 for the new style

07-26-2005, 10:28 AM	#13 (permalink)
stevoman098 TEAM Member Join Date: Jan 2005 Location: Ohio Posts: 474	Re: More DPFE Sensor information (updated with photos) I work in a parts dept. and we go through buttloads of those sensors, like one-two every day and its a fairly small dealership

08-02-2005, 06:15 PM	#14 (permalink)
Jibberish18 I Now Post Stupid **** Join Date: Apr 2003 Location: Chicago Posts: 4,620	Re: More DPFE Sensor information (updated with photos) I went to the dealer today to see if how much a DPFE sensor would be. I didn't need one but I wasn't sure if the one I got off of ebay was made for the Focus ( I think it is. I'll have to check) Well it showed in his system that my car should use the new redesigned and smaller sensor but the connectors were clearly different. So he just gave me the same model I had. And for waiting so patiently for him to assist me he gave me the sensor for $42 instead of $80. =) Made it out to Checker Cab. LOL. Good things come to those who wait I guess.

08-28-2005, 04:30 PM	#15 (permalink)
airforcefocus [FJ] Specialist Join Date: Feb 2002 Location: In the garage under the 09 Coupe. Posts: 6,043	Re: More DPFE Sensor information (updated with photos) Here are a few pics of the inside of the DPFE and what it may look like in a failure. Hot exhaust gas on electronics is bad...MMMkayy? \

11-02-2005, 12:51 PM	#16 (permalink)
Robsteeler66 Rookie Join Date: Apr 2003 Location: New Jersey Posts: 43	Re: More DPFE Sensor information (updated with photos) I have a question. Isn't this covered under warranty? My powertrain warranty is still in effect, I won't bother going in if it's not covered-I'll change it myself.

11-02-2005, 12:57 PM	#17 (permalink)
ax0n Devil's Advocate. Just to cheese you off. Join Date: Oct 2000 Location: In ur srvrz patchin ur krnlz Posts: 24,445	Re: More DPFE Sensor information (updated with photos) They won't replace it under warranty until the CEL comes on and the OBD-II code specifically says "Insufficient EGR Flow" or something to that effect. That takes a LONG time from the time it starts to fail. That means you go a long time with a lot of crappy mileage and driveability before they'll replace it free. If you feel like waiting it out, be my guest. Not to rain on your parade, but you'll probably be well out of warranty by the time that happens.

11-02-2005, 01:04 PM	#18 (permalink)
Robsteeler66 Rookie Join Date: Apr 2003 Location: New Jersey Posts: 43	Re: More DPFE Sensor information (updated with photos) Thanks! I looked up an online parts dealer and I don't see DPFE listed in the egr system. Could this be called a "pressure feedback sensor"?if not maybe I can search by part number. Do you know what it is?

11-03-2005, 03:24 PM	#20 (permalink)
ax0n Devil's Advocate. Just to cheese you off. Join Date: Oct 2000 Location: In ur srvrz patchin ur krnlz Posts: 24,445	Re: More DPFE Sensor information (updated with photos) Factory warranty is 36k, 3 years whichever comes first. You're out. P0402 is almost always the DPFE sensor problem though.

11-03-2005, 04:23 PM	#21 (permalink)
TheCondor Senior TEAM Member Join Date: Aug 2005 Location: Chandler Posts: 1,268	Re: More DPFE Sensor information (updated with photos) So do you think I should just go and replace the sensor? Or the EGR valve?

11-03-2005, 04:39 PM	#22 (permalink)
Robsteeler66 Rookie Join Date: Apr 2003 Location: New Jersey Posts: 43	Re: More DPFE Sensor information (updated with photos) Does anyone know? Is this called a pressure feedback sensor? Nobody answered my last post.

11-03-2005, 04:44 PM	#23 (permalink)
ax0n Devil's Advocate. Just to cheese you off. Join Date: Oct 2000 Location: In ur srvrz patchin ur krnlz Posts: 24,445	Re: More DPFE Sensor information (updated with photos) Yes it's the Delta Pressure Feedback of EGR (DPFE) Sensor.

11-11-2005, 10:10 AM	#25 (permalink)
neverlift35 Newbie Join Date: Nov 2005 Posts: 2	Re: More DPFE Sensor information (updated with photos) So where is the best place to mount the new DPFE? It seems Ford moved it closer to the heat source in 2001. Why would they do that? Or is heat not the main problem with failures? I am getting a P0401 so i need to narrow down whether my problem is the DPFE or the Vacuum Regulator Solenoid. It would be nice to try to mount the sensor in the best place. Great Thread! It will save me a few headaches in diagnosing my check engine code.

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