05-16-2008, 01:28 AM
I have been trying to track down a difinative answer on what precisely this sensor does. Mine is plugged with soot cement in the tube, but I was understanding it only applies to the EBPV. Is this the case, or does it mess with fuel timing with or without a chip? If so, I will replace the tube, if not no worries I guess! Thanks guys and gals.
05-16-2008, 11:29 AM
It is also what tells the PCM to let off the EBPV. I am a pretty big believer in keeping stuff like this working so that the PCM has all the proper inputs. I would replace the parts.
05-16-2008, 11:39 AM
I did the cleaning and replaced the tube, will it throw a code if the sensor isn't working? That thing was packed.
05-17-2008, 12:37 AM
Tom, I appreciate the info, but am sorta looking for the electronic effect a plugged tube would have on fuel tables. I do not have the ebpv anymore, so that is a not a consideration at this point. Just seeing if it affects fueling, like the pcm sees too much pressure or not enough, and prevents fueling some how. Sort of like the MAP sensor I guess. Thanks for the info about this.
05-17-2008, 01:28 AM
I am not sure on that aspect but my best estimate is that you would be OK without it constantly measuring backpressure.
05-17-2008, 03:13 PM
Thanks again for the info Tom. I fugured that if it was plugged it would see zero BP, and would fuel normally due to no sensed restriction. I also noticed I need to fill out my sig here on your web site. This is a very calm, helpful and knowledgable site. I think this is the new home site for me. I believe Tom we have both switched sites. Thanks again for the info. Colin
05-17-2008, 08:54 PM
I cleaned my EBPS about two monthes ago, the tube was clogged, took about 15 mins of playing around. Got a weed whacker thingie at the end of a drill and a little brake clean with some air. Did I notice anything different? not really, but my local guy who works on diesels says that when he cleans those tubes he replaces the sensor as well. I wish there was more input on ths topic, because it def comes up a lot.
05-17-2008, 11:40 PM
A piece of small diameter wire rope aka cable in the drill works quite well to clean it out.
05-27-2008, 09:57 PM
I soaked my tube in carb cleaner to loosen up the gunk, then rammed a wire through it. I like the idea of the cable/weedeater line on the drill!
05-27-2008, 10:40 PM
Not all trucks will act up if this thing is pluged my first 97 ran better with a dfuser in place of the ebps. The truck I have now there was no change when playing with it looking at AE.
05-30-2008, 01:42 AM
Cool guys, thanks for all the answers. I just removed the sensor from the tube, plugged the tube and am letting it see atmospheric pressure. It did not seem to do anyrhing, so it must be minor if anything with the fueling. Thanks again for all the input.
05-30-2008, 03:55 PM
The only thing I've seen it do when unplugged is throw a code. I fixed that with a D'Fuser. I've pretty much decided it only affects operation of the EBPV. Since I have a non-EBPV pedestal, I didn;t see the need to have it hooked up. I've also been told by a few knowledgeable people that they just disconnect theirs.