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1994.5 - 1997 7.3L Power Stroke Diesel  

bps code??

Old Feb 3, 2017 | 11:43 AM
  #16  
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I figured I would plop this in the actual thread it belongs in, for posterity.




Is that what you guys see on your trucks? This is when the truck is not running.
 
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Old Feb 3, 2017 | 11:44 AM
  #17  
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Also, what is the correct EBPS for our trucks???

I am seeing several that look the same but have different part numbers, for example:

DPFE1
DPFE3
EGR172

All between $85-$120
 
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Old Feb 3, 2017 | 12:23 PM
  #18  
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Motorcraft Exhaust Back Pressure Sensor 97-04 Ford 6.0L / 7.3L
 
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Old Feb 3, 2017 | 12:33 PM
  #19  
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I should have looked there. I feel like a dum dum lol thanks Darrin!
 
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Old Feb 3, 2017 | 12:34 PM
  #20  
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EBP, MAP, and BARO should be same with engine off key on
 
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Old Feb 3, 2017 | 12:40 PM
  #21  
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What year is your donor engine, cause there is a different one listed for '94-'96 trucks. Although you probably still want the '97 sensor to match your PCM. I'm not sure what the difference is between the two sensors. Maybe call Riffraff before ordering unless someone else chimes in.
 
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Old Feb 3, 2017 | 12:46 PM
  #22  
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I actually had the same exact question, Darrin. Clay was on the other line but should call me back when he is off.

They physically look the same, but they have different part numbers. That might be why the 97 sensor I have in now is throwing a code, and the original might have been bad this whole time and the PO took the CEL bulb out....
 
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Old Feb 3, 2017 | 01:14 PM
  #23  
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Originally Posted by Jarrett Campbell
...the PO took the CEL bulb out....
That sounds like genius right there... Check engine light on and won't go away, just pull the bulb!
 
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Old Feb 3, 2017 | 01:23 PM
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Originally Posted by dclack
That sounds like genius right there... Check engine light on and won't go away, just pull the bulb!
I did that on a 84 vett, injection sucked and switched over to carb
 
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Old Feb 3, 2017 | 02:16 PM
  #25  
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Originally Posted by knottyrope
EBP, MAP, and BARO should be same with engine off key on
+1; that ^^^^ reading is high. I guess it depends on how much beyond the _engine_ got swapped. If the OP is using the original PCM, he'd be best to use the original sensors and outputs controlled by the PCM. If the EBPS in service now is the one that was on the donor engine, that would be the first thing I'd swap back to the original.
 
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Old Feb 3, 2017 | 05:03 PM
  #26  
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Ok, I talked to clay. He said that with the 97 pcm and engine harness, I should use the 97 style sensor, which is in there now. Since it's still throwing a cel, I will have to assume that it's faulty and I will be replacing it.

It's interesting to me that people can run pcms from 97 (eg. A naw6) in a 1995 model truck with the earlier style sensor and not have problems??? Clay mentioned the plug was different, so maybe that is what would cause you to not be able to use the early sensor in a late application.... I don't know. Hopefully the new sensor fixes this mess.
 
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Old Feb 3, 2017 | 06:15 PM
  #27  
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Originally Posted by Jarrett Campbell
Ok, I talked to clay. He said that with the 97 pcm and engine harness, I should use the 97 style sensor, which is in there now. Since it's still throwing a cel, I will have to assume that it's faulty and I will be replacing it.

It's interesting to me that people can run pcms from 97 (eg. A naw6) in a 1995 model truck with the earlier style sensor and not have problems??? Clay mentioned the plug was different, so maybe that is what would cause you to not be able to use the early sensor in a late application.... I don't know. Hopefully the new sensor fixes this mess.
does it change with boost pressure, the ebpv reading? I scrolled through and saw you changed the tube but did you drill the fitting in the manifold? My Fitting in the manifold was clogged, and the 45 at te sensor bracket was plugged I had to replace that fitting too. I know every time I start my truck for the first time 10 seconds into idling the ebpv closes and it checks to see a pressure change from it.
 
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Old Feb 3, 2017 | 06:53 PM
  #28  
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Yes, it changes pretty much 1:1 with boost.

That's what is so strange.... It seems like the sensor is working, just 1.3psi too high
 
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Old Feb 3, 2017 | 07:05 PM
  #29  
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That is strange. The light would drive me crazy though. Maybe try cleaning the connector with electronic parts cleaner and check connector otherwise the sensor would be next id guess. Did you say you had the EBPV bypassed? Maybe its trying to test it and isnt seeing the pressure build up at the EBPV it should be on start up when it tests it. I havent deleted mine yet so i am not sure what happens when you do
 
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Old Feb 3, 2017 | 09:03 PM
  #30  
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Yeah, there is nothing in the outlet of the turbo. I drilled the rivets out and replaced the shaft with a freeze plug.

Cleaning the connector and replacing the sensor are what I'm doing tomorrow/Sunday. I'll report back
 
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