Well I thought the truck was running good... It sat last night and most of today and I went to start her and she fired first crank but idle extremely erratic and had a nasty lope and unloaded a mass cloud of white smoke... New injectors went in a week and a half ago and all seemed well until the lift pump failed. I'm thinking the LP took the VP too. Fuel pressure went straight to 20 psi so that's not a issue. Ran the key trick and got P1693 and then -------- and then P Done. checked for codes and found nothing. 

This might help

https://www.bluechipdiesel.com/diagnosing-a-lift-pump-issue

6 minutes ago, IBMobile said:

This might help

https://www.bluechipdiesel.com/diagnosing-a-lift-pump-issue

Dsosnt real address the issues I'm having. 

It sounds like your timing piston is out of whack. 

2 minutes ago, trreed said:

It sounds like your timing piston is out of whack. 

Which means new VP44? I will also add that when I was repriming the system after the Fass install it took a really long time for the fuel to reach the pump and injectors. I did the bump starter priming method at lest 6 times and a lot of 30 second crank intervals before it started. Also I had 3 injectors cracked to bleed air. 

My bad.  This is the one I was thinking about.

https://www.bluechipdiesel.com/runningtests

5 minutes ago, IBMobile said:

My bad.  This is the one I was thinking about.

https://www.bluechipdiesel.com/runningtests

Thanks that’s more helpful! 

Another side note. Truck seems to run and idle well after its warm... 

It may be your vp, you did mention shitty fuel mileage. It's usually a sign of weak vp, honestly I think mine is heading there too, I just can't seem to get 20 mpg unless it's all hwy going about 60mph. Average is like 16 and that's being nice. I did have white smoke the other day getting off hwy coming to stop sign in reved it up just before taking off again and big cloud of white smoke passed me, never seen that before and it never did it again.

39 minutes ago, Dieselfuture said:

It may be your vp, you did mention shitty fuel mileage. It's usually a sign of weak vp, honestly I think mine is heading there too, I just can't seem to get 20 mpg unless it's all hwy going about 60mph. Average is like 16 and that's being nice. I did have white smoke the other day getting off hwy coming to stop sign in reved it up just before taking off again and big cloud of white smoke passed me, never seen that before and it never did it again.

Hmm hopefully some more guys will chime in with some more death symptoms. I don’t want to go out and buy a 1500 dollar part if I don’t need it...

Anyone have an explanation for the P1963 and the --------- and PDone? The dash part seems strange. Like it is telling me there is a code but it don't know what it is? Going to be starting the truck in a little while and we will see how she starts and runs today. 

Your 2000 only reads one computer and the 1693 is telling you there is a code in the other. As in the PCM since the key trick only reads the ECM. 

10 minutes ago, dripley said:

Your 2000 only reads one computer and the 1693 is telling you there is a code in the other. As in the PCM since the key trick only reads the ECM. 

Hmm but I hook up a scanner and get no codes? Tried the OBDLink and my Scan Gauge.

That I can't answer that. I have some distrust in the key trivk and usually rely on my scan gauge. If yours was reading both it would read p ecu, then any codes, then p done. Then you would see p pcu,  then any codes, then p done. This works 02's, most 01's and maybe a few 00's. Kind of hit miss on it

10 minutes ago, dripley said:

That I can't answer that. I have some distrust in the key trivk and usually rely on my scan gauge. If yours was reading both it would read p ecu, then any codes, then p done. Then you would see p pcu,  then any codes, then p done. This works 02's, most 01's and maybe a few 00's. Kind of hit miss on it

My build date was 1999 so I doubt it works on mine. Ill run some more scans for codes today. 

Now I'm bewildered. Truck started up and idled fine with barely a puff of blue smoke and its 25 degrees out! And it wasn't plugged in! Very strange. 

Went to town a little bit ago and truck sat for about 20 mins. started on third crank and sputtered and idled shitty until I revved to 1200 rpms and finally idled better but still not normal. Still a rough idle. Talked to Blue Chip diesel nd gave him all info and symptoms and hes thinking that its the VP. Any other thoughts? 

Heres a video of the warmed up idle after it sat for 10 mins. 

 

Definitely could be VP or injectors. Seems to lean more towards VP since you’re seeing the symptoms when the trucks warm as well.

9 minutes ago, notlimah said:

Definitely could be VP or injectors. Seems to lean more towards VP since you’re seeing the symptoms when the trucks warm as well.

Just replaced injectors2 weeks ago. I think that's what caused the lift pump to fail. Ran great until the LP died. So its about got to be the VP. 

Yea well there ya go lol!

24 minutes ago, notlimah said:

Yea well there ya go lol!

LOL I guess I'm going to drive it till it dies cause i aint spending the cash till i have to lol. 

A new member of the dead VP club. 

I had a lift pump go bad too, and then I talked to FASS and replaced the spring, I dead tested the lift pump before installing it and i would get about 12 psi on an old pressure gauge.  I put all new fuel filters including the FASS inline filter.   I installed this in the truck and the pressure read 15 psi. OK, maybe?  Truck would run sputter when I gave it gas and accelerate, and then die.  The pressure would go to 15, then as the truck died the fuel pressure drops to 0. 

 

I get the Pdone code but no other codes on an Innova scanner,  no P1693 just the P0216.  Yep, I thought my truck was running great too.

Marcus, did your fuel pressure fluctuate or fall to zero on yours?   It was a Blue Chip VP44 that I got about 90 K out of, and that's with 2 stroke oil for over 50k worth of driving.