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Joined: Apr 2002
Posts: 888
Veteran CEG\'er
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Veteran CEG\'er
Joined: Apr 2002
Posts: 888 |
i got a 96 contour with the V-6 engine and get the code
P0401 and already changed out the EGR valve and the vacuum sensor... still have code after resetting it.. then went out and got the gaskets for the throttle body and EGR valve and will remove them and clean out to get rid of code....
the DPFE sensor was also mentioned in several archive post, but the links showing you what a DPFE sensor is is outdated and missing... need to know what a DPFE sensor is and what it looks like, and can they be tested, i got vacuum gauges,
volt/munti meters etc... just cant find the DPFE sensor in my ford service CD or the hayes contour book...
thanks for a reply, any current links with pictures so i can find it and check it out????
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Joined: Aug 2002
Posts: 339
CEG\'er
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CEG\'er
Joined: Aug 2002
Posts: 339 |
I think the DPFE sensor is a silver box with three vac lines?? about the size of a box of matches.....
Mondeo V6 RS
RS Bodykit
RS Lowered
SVT UIM
SVT TB
SVT LIM
Philips 6000K HID ZENON
Twin Stainless Exhaust
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Joined: Sep 2000
Posts: 4,693
Hard-core CEG'er
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Hard-core CEG'er
Joined: Sep 2000
Posts: 4,693 |
I don't know how to test the DPFE without a scanner.
The DPFE measure the difference in exhaust pressure and helps in metering the EGR. The DPFE sends a signal to the processor that helps in determining how much EGR (exhaust gas recirculation) there needs to be. DPFE failure is common.
Jim Johnson
98 SVT
03 Escape Limited
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Joined: Jan 2003
Posts: 29
New CEG\'er
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New CEG\'er
Joined: Jan 2003
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Thanks Big Jim. I have always wondered what the DPFE sensor does.
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Joined: Dec 2001
Posts: 667
Veteran CEG\'er
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Veteran CEG\'er
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Posts: 667 |
DPFE is silver rectangular box located beneath EGR valve. It has two hoses (one inbound and one outbound) and an electrical connector. As was said previously, the only way I know to test it is with OBD-II scanner. If you haven't cleaned out the EGR passages behind the throttle body gasket, then I bet that is the problem. I had a P0401 last year and replaced the EGR, EVR, and DPFE, but the code remained. Once I cleaned the passages, everything worked great. See the following links for more info on this: http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=1717http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=10673
96 Contour SE
Duratec V6 24-valve 2.5L ATX
108,000 mi.
Replaced: crankshaft w/ DMD, EGR valve (clogged), EVR, DPFE, PCV valve, evap emissions hose & tube (cracked), window regulator (broken), LH & RH PCV tubes, UIM gasket (leak), ignition coil
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Joined: Mar 2002
Posts: 2,319
Hard-core CEG'er
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Originally posted by GeoPappas:
DPFE ... has two hoses (one inbound and one outbound) ....
Actually two inbound reading pressure on either side of a venturi (narrowing) in the EGR tube from exhaust manifold. From this it deduces exhaust gas flow thru' EGR valve.
DPFE=Differential Pressure Feedback EGR
98 Mystique LS v6 atx 163,000km
97 Contour LX v6 atx 163,000km
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