Current CEL codes

Brian95SVT · Apr 19, 2008

p0401 and p1401

they are related to the EGR
one was for flow efficiency and the other i forget....

thoughts?

could this be why my car "studders"

AaRoN · Apr 19, 2008

P0401-Insufficient EGR flow

P1401-Differential Pressure Feedback Electronic Sensor circuit High Voltage.

FTR: I found these within seconds of searching Google.
http://www.mustangupgrades.net/mustang_check_engine_light_codes/mustang_OBD_II_codes1.shtml

Brian95SVT · Apr 19, 2008

yes i know what the codes are... i pulled them..

i just forgot. and i googled it right after
i was wondering how to fix it...

where can i get the DPFE

Brian95SVT · Apr 19, 2008

sorry not tryin to be a dick but i wasn't askin for what they were
i was sayin thoughts for could this be why my car is studdering and no driving as smooth as it should

i know how to find out the codes

i need to find out what to replace
and where to get the DPFE at

which i'm thinkin the only place is ford themselves...

reivaxtorres · Apr 19, 2008

yeah, get the DPFE at ford. before you spend money on it though, make sure the connections are clean and the hoses are all plugged where they need to be.

i had the P1401 code too, thought i had checked everything, was about to replace the DPFE, and then i noticed 2 vacuum llines unplugged

Brian95SVT · Apr 19, 2008

reivaxtorres said:
yeah, get the DPFE at ford. before you spend money on it though, make sure the connections are clean and the hoses are all plugged where they need to be.

i had the P1401 code too, thought i had checked everything, was about to replace the DPFE, and then i noticed 2 vacuum llines unplugged

all my lines are connected i'm pretty sure but i am going to try and check
where are all the lines for this at?

write up anywhere?

reivaxtorres · Apr 19, 2008

my96gtstang said:
reivaxtorres said:

yeah, get the DPFE at ford. before you spend money on it though, make sure the connections are clean and the hoses are all plugged where they need to be.

i had the P1401 code too, thought i had checked everything, was about to replace the DPFE, and then i noticed 2 vacuum llines unplugged

Click to expand...

all my lines are connected i'm pretty sure but i am going to try and check
where are all the lines for this at?

write up anywhere?

there is no write up, but its fairl easy to check. 2 hoses plug into the back of the DPFE. both these hoses plug into the EGR tube. the one on the DPFE thats closest to the passanger side goes to the port closest to the cat on the EGR tube. the other one on the DPFE (closest to the drivers side) goes to the top port on the EGR tube.

there is an electrical connection on the DPFE, make sure its clean.

there is also another vacuum line that comes out the front of the DPFE, cant remember how it goes, but it splits in 2, one goes to the top of the EGR, the other goes to the fuel pressure regulator or something like that, cant remember

Brian95SVT · Apr 26, 2008

* P0401 Insufficient EGR Flow.
* P0402 EGR Flow Excessive at Idle.
* P1270 Engine RPM or Vehicle Speed Limiter Reached.
* P1401 Differential Pressure Feedback Electronic Sensor circuit High Voltage.

those are the ones i pulled last night but i deleted them with an SCT X3 handheld and they came back up on my way home so i'm not sure which ones they are but i'm sure they are prolly the same..

how do i go about fixing this?!

bobtsgt · Apr 26, 2008

When I got the insuffecient flow it was a split hose. I have a spare DFPE off my 96 if you need one. Check the 2 hoses off the DFPE and you might need to replace them. I just deleted all my stuff for the ease of everything.

Brian95SVT · Apr 26, 2008

bobtsgt said:
When I got the insuffecient flow it was a split hose. I have a spare DFPE off my 96 if you need one. Check the 2 hoses off the DFPE and you might need to replace them. I just deleted all my stuff for the ease of everything.

how much you want for it?
i heard that the DFPE on 96s were garbage and it was a recall item... but i guess the guy who had this before me didn't do it?
can you take pics of where these hoses are and what to look for because i'm lost.

bobtsgt · Apr 26, 2008

say $20 shipped. I don't need it anymore. I don't have the hoses any more. Just the DFPE and the EGR valve and tube. The hoses run behind the head and connect to the egr tube and somewhere.

Brian95SVT · Apr 26, 2008

bobtsgt said:
say $20 shipped. I don't need it anymore. I don't have the hoses any more. Just the DFPE and the EGR valve and tube. The hoses run behind the head and connect to the egr tube and somewhere.

if ya could take some pics that would be AMAZING

do you have paypal?

bobtsgt · Apr 26, 2008

yeah I have paypal. The sensor is at my office. I may be able to get a pic tomorrow if I go back down. If not it will be Monday.

Brian95SVT · Apr 26, 2008

bobtsgt said:
yeah I have paypal. The sensor is at my office. I may be able to get a pic tomorrow if I go back down. If not it will be Monday.

could you take a pic of the engine bay where all of the stuff i need to "check" is at?

bobtsgt · Apr 26, 2008

the sensor sits on the left of the drivers side head in the back. Its attached to the manifold by a black bracket and 2 bolts. Its a gray box with two hoses coming off it and a electrical plug. If you can take a pic of your engine bay I can circle it for ya. I have no pics of my old engine bay anymore. Memory card got screwed up last year.

Brian95SVT · Apr 26, 2008

bobtsgt said:
the sensor sits on the left of the drivers side head in the back. Its attached to the manifold by a black bracket and 2 bolts. Its a gray box with two hoses coming off it and a electrical plug. If you can take a pic of your engine bay I can circle it for ya. I have no pics of my old engine bay anymore. Memory card got screwed up last year.

these are the only pics i have but i can take more when i get home: