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Can a bad Exhaust Back Pressure sensor cause no boost and there fore no power?

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Can a bad Exhaust Back Pressure sensor cause no boost and there fore no power?

  #1  
Old 01-22-2007, 05:39 PM
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Can a bad Exhaust Back Pressure sensor cause no boost and there fore no power?

Got a bad one, and hoping it will bring the power back to life.

Chris
 
  #2  
Old 01-22-2007, 05:44 PM
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Yes it sure can.
 
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Old 01-22-2007, 06:10 PM
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It can cause a defuel mode, which makes your truck run like a turd.
 
  #4  
Old 01-22-2007, 06:19 PM
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Originally Posted by 94F350Turbo
Got a bad one, and hoping it will bring the power back to life.

Chris
the tube could be pluged with soot too..have you tryed cleaning it???
 
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Old 01-22-2007, 07:18 PM
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Where is it, and how do you clean it. Think I'm having the same problem. Its been doing it on cold mornings, but seems to be lasting longer and worse here lately.

Chad
 
  #6  
Old 01-22-2007, 07:31 PM
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Heres the sensor

The tube runs from under it to the front of the passenger side exhaust manifold.

A crowfoot wrench makes it a little easier to get the upper nut off. Once removed from the truck spray with Brakleen or similar stuff. A 3' piece of 0.95 square weedeater line works good as a snake to run throung to pipe. Repeat spraying and reaming with the weedeater line about 4 times and it usually gets it pretty good. Before reinstalling pressurize the tube to check for any small cracks.
 
  #7  
Old 01-22-2007, 07:37 PM
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Now for part 2

The PCM is allowed to controll the EBPV up to an oil temp of 167*F when ambients are < 45*F. When the Temp needle on the dash goes to the normal position the oil temp is only around 130*F (as seen in AE) so it will continue to close under low speed (< ~45mph) low load conditions for a bit longer. A clogged/cracked tube will usually show a low backpressure and effect mileage and cause the PCM to interpret a Low Load condition even when heavy into the pedal. A bad sensor will cause the PCM to use a default value based on pedal position.
 
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Old 01-22-2007, 07:52 PM
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How much do one of these sensors cost, anyone?
 
  #9  
Old 01-22-2007, 08:04 PM
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[QUOTE=vinman46]How much do one of these sensors cost, anyone? [/QUOT

around 140 if i remember right..
 
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Old 01-22-2007, 08:11 PM
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Theres a used one on ebay for $1.99 But i would try http://www.puredieselpower.com/catal...ebp-p-718.html
 
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Old 01-22-2007, 08:18 PM
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[QUOTE=amiller93]Theres a used one on ebay for $1.99 But i would try http://www.puredieselpower.com/catalog/9703-ford-73l-powerstroke-exhaust-backpressure-sensor-ebp-p-718.html[/QUOTE]

thats a good price...i was close though..120 at dealer it said..
 
  #12  
Old 01-22-2007, 08:26 PM
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alan i have a Eliminator in place of my EBPS..my EBPV is a exhaust brake now and it does not get used on the cold start package..unless i turn it on my self...whats your thoughts on that good or bad??? thanks
 
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Old 01-22-2007, 08:34 PM
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Order a Banks Power Elbow and forget about the poor fuel milage. I love mine.
 
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Old 01-22-2007, 08:42 PM
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Ron the PCM wont controll yours so there is no problem, the PCM is seeing an average backpressure reading from the Eliminator. Only reason i dont hook it up as a brake is the 01 tranny dont want to have to see brian before I want to.
 
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Old 01-22-2007, 08:46 PM
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Originally Posted by amiller93
Ron the PCM wont controll yours so there is no problem, the PCM is seeing an average backpressure reading from the Eliminator. Only reason i dont hook it up as a brake is the 01 tranny dont want to have to see brian before I want to.
thanks alan...i havent had any problems with it but i also didnt do any test with AE on it yet.. does you trans have the dioed in it??
 

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