EBP sensor tube - Ford Powerstroke Diesel Forum
 
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post #1 of 7 Old 10-12-2010, 03:56 PM Thread Starter
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EBP sensor tube

Over the last few months I noticed the engine picking up a slight vibration at low RPMs. It wasnít bad and sort of came and went. With 340k miles I attributed it to age and normal ware.

Well, the other day I pulled into a fuel station and noticed a very rough idle. Before I could wrap my mind around the vibration problem I was engulfed in a cloud of white smoke.

Fast forward to today... After reading many threads here I figured the likely problem was a bad injector. I wanted to check the easy/cheap things first so I pulled the EBP sensor tube to check and clean, it has never been removed. Initially I was disappointed because even though it had carbon residue it was far form being stopped up.

At this point I was focusing on the tube ends and didnít really look at the tube itself. When I shot some cleaner in it I was surprised to see it shoot out the side. Anyway the photo is what I found.

I hope this is my problem and I ask anyone here with experience, what sort of problems would a hole like this in the EBP tube lead to? Thanks...
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post #2 of 7 Old 10-13-2010, 07:30 AM Thread Starter
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A follow up question.

What function is the EBP feedback signal?
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post #3 of 7 Old 10-13-2010, 10:25 AM Thread Starter
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Replaced the EBP tube and problem solved.

Again, can anyone familiar with the fuel system explain how the EBP sensor is used in the fueling loop? Just curious. Thanks...
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post #4 of 7 Old 10-13-2010, 01:59 PM
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The pcm uses exhaust back pressure in combination with boost to decide how much fuel to inject.

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post #5 of 7 Old 10-14-2010, 06:09 AM Thread Starter
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Thanks FDD.
So EBP is a primary reference for fueling and boost is another. Are there any other references used by the PCM for base fueling?
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post #6 of 7 Old 10-16-2010, 08:19 AM
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where is the ebp sensor located?

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post #7 of 7 Old 10-28-2010, 04:54 PM
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connects to passenger side exhaust manifold and runs right up to the ebp sensor behind the hpop reservoir.>>>>brian

96 F250 460-auto-ext.cab-long box-4.10-152k-10mpg all day running or not.....

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