P0470, P0475, P0478 EBPV Codes - Ford Powerstroke Diesel Forum
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Old 11-04-2010, 11:12 AM
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P0470, P0475, P0478 EBPV Codes

Hey Guys, I have noticed that my mileage is slowly decreasing. I work approx 10 miles from work & realize that probably isn't enough time for everything to warm up now that the weather is cooling off & the last tank of diesel may have had a winter blend (I'm not sure if NM would get a winter blend?) However, everytime I scan the diagnostics on the Bully Dog (Yes I know) it always shows these 3 codes. Today I reset them, & then within a mile checked it again & P0470 was already back, a few more miles & all 3 are on. Is it most likely the sensor? I've read I could just delete the EBPV altogether, would this be an option, pros or cons to it? Thanks!
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Old 11-05-2010, 05:31 PM
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no do not delete the EPBV. The computer looks at it to control the epr. odds are with all the codes for the same area, you have a bad epbv. id just replace it.
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Old 11-05-2010, 07:51 PM
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Thanks for the feedback. I'm thinking that the Pac-Brake uses the stock EBPV as the brake? I have plenty of experience with Turbo's, but not turbo diesels & from the pictures I've seen the exhaust housing that contains the back pressure valve looks like on mine that it's connected to the pac-brake solenoid. Never would have thought that something as expensive as the pac-brake would use a factory valve...
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Old 11-05-2010, 08:04 PM
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There is no real reason to keep the EBPV. There are multiple parts to it. The valve. The rod that actuates it in the pedestal which can leak oil. And the sensor off the pass manifold which can clog up. Diff parts can go bad. You can delete it, but you gotta plug the holes where it pivots in the housing. And plug the actuator rod hole in the pedestal. PacBrake uses it as it's brake I think. You can make your own EBPV home made exhaust brake. But that's another story.
Idk what the "EPR" is, never heard of it. How can the EBPV go bad? Like which part do you mean? The actuator, sensor, or actual valve? Probably it's the sensor.
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Old 11-06-2010, 05:58 AM
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EPR= Exhaust Back Pressure Regulator
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Old 11-06-2010, 05:58 AM
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and when I say replace the EBPV, I'm referring to the sensor itself.
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