High ebp psi numbers even with new sensor and harness - Ford Powerstroke Diesel Forum
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  #1  
Old 05-28-2013, 07:55 PM
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High ebp psi numbers even with new sensor and harness

Well I decided to put this in a different thread to quit bumping my other thread that had nothing to do with the title.



  • I tried changing out the sensor and that did not help
  • I tried splicing in a new a pigtail to the wire harness. I opened up the harness and to find good fresh clean wires with no chaffing or splices.
  • Test out the MAP sensor and it is all working right
  • I made sure to return the truck back to stock
  • When unplugging the sensor the truck goes into default mode at 21.48 psi
  • I read that the EBP sensor was related to the VGT solenoid so I tried unplugging it to see what happens... did not affect the EBP reading


So does anyone have any good ideas?
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Old 05-28-2013, 08:25 PM
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I am not 100 percent but I think our trucks being 04s guess exhaust pressure, for instance at idle my trucks shows like 15 psi and I also put a new sensor in too.
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Old 05-28-2013, 08:34 PM
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well I have a little more to add to my findings...

The ebp sensor is reading
  • 50 psi key on engine off
  • 64 psi idling
  • 21 psi unplugged

I tired the following just to see if it affects the sensor reading
  • unplug icp sensor does nothing
  • unplug map sensor does nothing
  • unplug maf sensor does nothing
  • unplug the vgt solenoid does lower the ebp psi down to 50 from 64 (this leads me to believe they are related)
  • I tired jiggling all the wires i could find thinking i could see the numbers change... nothing
  • unplug egr does nothing
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Old 05-28-2013, 08:37 PM
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Page 58: Electrical Components

this helps a little... I am going to try and find the exact wires where the ebp sensor connects to the pcm and splice in all new wires
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Old 05-28-2013, 08:38 PM
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Ok mine were higher then I said.idle 35 psi,WOT was like 68 to 70.is your truck and early 04?
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Old 05-28-2013, 08:41 PM
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no... i think it is a late 04 with the icp on the valve cover...

I got my truck flashed and updated right after I finished my build (the previous owner was running a bullydog and I did not want it to mess with my tunes). Maybe the latest flash from Ford changed something because my numbers seem similar to yours.


Although according to the 6.0 bible it is not possible for the ebp sensor to read above 54psi... that is out of its range
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Old 05-28-2013, 08:47 PM
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Well you might be ok, I was told that the ebp varies a lot because of it guessing. I just asked this question a few weeks back. I will see if I can find the thread.
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Old 05-28-2013, 08:59 PM
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Quote:
Originally Posted by peixinho View Post
no... i think it is a late 04 with the icp on the valve cover...

I got my truck flashed and updated right after I finished my build (the previous owner was running a bullydog and I did not want it to mess with my tunes). Maybe the latest flash from Ford changed something because my numbers seem similar to yours.


Although according to the 6.0 bible it is not possible for the ebp sensor to read above 54psi... that is out of its range
Well this will be good for both of us,but a few other guys have said theirs does not read anything.i actually want to hook up a real gauge.
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Old 05-28-2013, 09:02 PM
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just out of curiosity did you clean out the tube that connects it to the manifold? my sensor was plugged along with the tube with gunk from the exhaust

Last edited by roche837; 05-28-2013 at 09:06 PM.
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Old 05-28-2013, 09:04 PM
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my understanding is 03,04's use MAF instead of exhaust backpressure, and the later trucks use exhaust back pressure in conjunction with MAF. Anyone confirm?
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