DPFE Sensor/EGR Valve Keep it Clean?

[Timothy Ferguson]

What if any product can I use to keep my DPFE and EGR valve ports, lines, and themselves clean. I drive a 2000 Ford Ranger and few weeks back I had the dreaded DPFE sensor that goes bad and makes your truck run like crap. I replaced it, and when I pulled the vac lines off the sensor the sensor look pretty carbonized up. People has also said the EGR valve lines could get the same way.
My question: Is there a product that I can be running that will help keep those lines to the EGR and DPFE clean? Synpower Fuel System Cleaner? Or fuel power? Anything? Any brand of fuel system cleaner will work for me as long as I can get it. I heard Regane is pretty good? I always try to pump 87 regular from a reputable station like Shell is my favority and then Chevron then BP/Amoco.

HELP!

 

[kang]

What's a DPFE? Sorry, I don't know that acronym.

 

[punisher]

I will go out on a limb and say there is nothing you can add to your gas to extend the life of the DPFE. DPFE failure is not due to clogs of the sensor ports, it is due mainly to moisture contamination and heat. There is a silicone rubber seal that holds the sensor diaphragm in place, that ring leaks and lets exhaust gas, and the accompanying moisture, into the electronics and that is that. It is easy to see if you separate the DPFE case and have a peek. DPFEs fail, and that is my story and I am sticking to it.

 

[keithej2]

DPFE is Differential Pressure Feedback Exhaust (sensor). It's the sensor for EGR flow. They also clog in Mustang's hence my interest. Some links,
http://autorepair.about.com/cs/generalinfo/l/bl470g.htm
http://autolabscopediagnostics.com/dpfe.htm
http://www.tomco-inc.com/Tech_Tips/ttt36.pdf#search='DPFE'
http://www.niehoff.com/techtips/n_sen.html

 

[kang]

quote:

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Originally posted by keithej2:
DPFE is Differential Pressure Feedback Exhaust (sensor). It's the sensor for EGR flow. They also clog in Mustang's hence my interest.

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Thanks. I learned something new today.

 

[crashz]

Very common on F150's too. I've had mine fail twice. Once under warranty and once after. The only good thing I can say about the DPFE is that its easy to replace. And the sensors are cheaper now than ever.

 

[road_rascal]

I had one fail on my '01 Windstar and made the dealer replace it (out of warranty) due to a TSB I had in my hand. Very common for Ford products, especially if you get a code for EGR flow don't assume it's the EGR valve. According to a few other message boards I belong to the newer metal style DPFE sensors are suppose to be a little better than the plastic ones.

 

[Rick20]

I have heard from some folks is that its due to the fact that when deccelerating, the egr valve does not open totally, in some older Ford Motors.
Other manufacturers have their computor controls open the valve wide open, when deccelerating, especially at highway speeds. Thought I would throw it out for thought.