Arlis B. Ortman

So i was able to get it to fire. I first searched and reset the APPS. - that seemed to lower the overral rpm showing when it started from 2500 to about 2200. Next i thought maybe to much air was in the system, so i cracked the injector lines and turned the key a few times till it cycled some fuel. It did take multiple attempts to get fuel to one of the lines. Hooked it back up, and it turned over correctly and ran nice the first time. Seems to be running very well now. Thanks for the help! Best regards,

I just changed out a factory lift pump on a 2001 Cummins to a FASS DDRP. Everything installed tighter, also added a sediment filter in line before the pump. Cycled pressure through and started the truck right now. It goes Immediately to 2500rpms and holds there. Good news is it is showing good pressure at that high rpm, but it is NOT coming down. is there a reset that needs to be performed, or did something get bumped during install? Vehicle is equiped with an Edge JWA tuner. No other mods that i can tell from sight. Thanks!

Yeah that was rolling down the highway. 2,000 RPMS was conservative as i was really getting into it to test the drag on fuel pressure. probably didnt go about 2400RPMS (on the road).

Thanks for the help guys. I did replace the filter first. Second was the fuel pump, then the 12v power. The power was the only thing throwing out any codes too, so Mopar1973man was definetly on the right track there too. When i replaced the battery cables i was attaching the starter side and noticed someone had spliced in an aftermarket 'in line' fuel filter. not only that but the splice job was horrible and the fuel line was pinched on both sides! Removed the filter and it took some hefty air pressure to blow through. I ran down to local car parts store and got a new sediment filter. The one i took off was only rated for gas engines also! Slapped in the new in line debris filter, and trimmed the line to fit properly. Looks like its working great now! 18psi idle varies between 8-10 with the hammer down at 2,000+ rpms. I'll have to check all my connections now that its flowing properly to make sure everything is snug and no leaks after all the changes. I wouldnt mind getting my DDRP v02 back in there, but is there a way i can test its functionality when its not installed? Fantastic forum btw. Very constructive answers, unlike what i found in a different diesel forum! Thanks

The pump I put on is an Airtex E7153. Its not great, but price was a factor. I didnt do any testing on the removed FASS DDRP. I am a complete newbie to auto mechanics. I couldnt hear it running when i turned the key and i wasnt getting any pressure so i figured it was shot. Guess that was my best guess of where to start. I'd much prefer to put the FASS back in as its a far superior pump. Is there a test i can run on it to see if its functional? Maybe i could plug it in and see if it turns? I've got a mechanical tester. I've tested the psi at the 2 fuel filter outlets for psi. The 'in' was testing at 20 psi on the mechanical gauge and the out was testing 0 psi. I checked my connections going off the filter to the VP, possibly it was to tight? Now i read around 12 leaving the filter heading towards the VP. I have looked and looked, but cant seem to find the spot on the VP to test fuel pressure mechanically. Also, should i just pull the hose and turn the key to get it to flow test that, or crank the engine as well? Thanks

I have a 1999 24v cummins. I'm probably the 4th owner, possibly 5th. A previous owner had installed exhaust mods, fass DDRP v02, Edge Juice with attitude. I'm not sure of any other modifications. The DDRP went out on me the other day on my way home. I limped truck home. After sitting over night and trying to start the next day, truck was showing 0 fuel psi anywhere and i couldnt hear the lift pump at all. I was limited by funds, but replaced the lift pump with a napa one (airtex i think is the brand - not ideal, i know) Truck then was showing 21psi at the top of the filter cap, but 0 psi leaving the filter cap. My edge, which i believe checks psi at the VP44 showed 0 psi until i would kick the starter once. Then i twould jump up to 14-20psi right away. I have since replaced the battery cables as there was some corrosion and i noticed some cutting power to the edge occasionally. I had the codes read, but unfortunately didnt get them written down. Mechanic said everything checks out fine, yet i'm still getting 0 psi when i'm on the highway under ANY sort of pedal. onlytime i show psi over 0 is if the truck is at an idle, then it will slowly climb back up to about 10psi (per edge) I know that running under spec for psi is a sure killer of your vp44. I need some advice as to what could be going wrong here? I've also changed the fuel filter. Truck has 210,000 miles. Its unknown to me if the vp44 has ever been replaced or not. Thanks,