Search Results for Query: *

Ceberusium, O yeah, it was just to rule out the PRV as possible leak. It is no longer in the rail. Thanks P-Bar, A lot of times I think I am right but later find out I am wrong so I hope what I posted does not steer anyone in the wrong direction. I have had a two sets of injectors tested and...

P-bar, I know he put in a solid/race plug in place of the pressure relief valve.

Update to this thread. I was looking over my injector test paperwork about a month ago and I noticed one injector result was way off compared to the others. I showed it to the shop owner I was using (good guy) and he agreed but it was too little too late. My problem was why did I have to find...

No problem PetersonJ. I can't tell you how many threads I read that sounded just like my problem but then I would get to page ,2, or 3, or 4 and no closure. No solution. Guy just disappeared and I'm like man I thought this was the one that was going to solve it for me. I'll post back in a...

I have had my truck back for about a week and have driven to and towed with it without getting the P1223 code. Mechanic (who was awesome) replaced the CP3 pump and so far no P1223 or P0148 code so it looks like that was the issue. Hope it helps someone in the future.

AH64ID, You posted this on the Cummins forum back in 2012. Original poster was asking about dropping rail pressure when towing. "That is how the stock RP map works, so no the BOP won't do anything if your meeting the commanded rail pressure. You can see here the dip it has as load increases...

All right all right. Recap: Losing rail pressure and getting P1223 and P0148 code. I said back in November I would provide a solution to this problem if I ever figured it out so the next guy may not have to go through all the money and difficulties I have gone through. I am not quite there yet...

Another update if anyone cares. So I got my truck back from the dealer and they said my injector return was a total of 30ml for all six injectors. The mechanic said he did the test at idle and ramped up to I think about 20Kpsi. 30ml seems very tight. The previous shop had it in the 140-160...

Thats Sag2. I think I might have seen that post. I'll look again. Have fun at SEMA.

Just a little follow up for anyone who cares. I went to the dealer today to talk to the mechanic who worked on my truck. He said my injector return flow checked good but that I had some fuel dripping out of the PRV return line during the test. So one mechanic says that the PRV is the problem...

Thanks Ozymandias.

MGreer, Thanks a lot man. I really appreciate it. The issues I have had with this truck have been a beat down. Seems to be a combination of things that I think I am finally sorting out with the help of forums like this. I am afraid there is more to the story than just the 1223 code but I'm...

I don't have an answer yet on that TSB but I should know sometime later today. Are you able to isolate the Pressure Relief Valve during the return test or does that return fuel get mixed with the injector return? I'm working on learning this stuff so if it sounds like a stupid question bear...

I’ll check on that Ozy. I’m not the first owner. I’m traveling right now but will get back to you. Thanks

Hi, Im still working on this P1223 excessive return code after replacing all 6 injectors (BBI stage one new not remans) and connector tubes. My question is, on the injector return test is there a way to isolate just the return going through the PRV? In other words a way to just check the...

Ok guys thanks. I have always though this trucked lacked guts while towing. Maybe I have had this problem all along. I can floor it and not see 24kpsi. The mechanic rode along and had the truck hooked up to his diagnostic tool. Said it is commanding a lot more than it is delivering at higher...

If anyone is interested, here is an update on my 2007 5.9. Big picture. One problem solved, another manifested/discovered. Quick summary: Initial problem was a rough idle and white smoke on idle. Injectors tested good but still had white smoke. Replaced all 6 injectors with brand new...

Walter, thanks for the suggestion. We would have to put the injectors back in for a 2nd time and I don't have a lot of confidence in these injectors anymore so I am leaning towards replacing them. Had them in, swapped them out, put them back in, then took them out again. It's getting harder...

Ok. Got it. I should have figured that out. Only has a 128K so hopefully is the FCA and not a CP-3. And the LP is lift pump? I have a FASS 150 less than a year old so I think I'm probably good there. Is Geno's the place to get a solid FCA?

Great. Anybody want to buy a 2007 5.9? Runs great on occasion. Can't even tell you are towing unless you tow more than 1000#. Ceberusiam: What is "CP3 going to TU"? "they will tend to want drop off into lug really quickly at lower than 2000 rpms." That is what mine does. I'm a little...