I've got 07 LBZ with 110k miles on it. Running EFI live trans safe tunes. I keep getting a p0087 code and fuel limp in 60HP tune or higher. Only happens when I hit 80mph or so at full throttle! My tuner says I probably need a lift pump but wanted a second opinion. Does it I'd say 2 or 3 out of every 5 WOT runs! We already installed a PPE FPRV Shim kit. Haven't had a chance to bottle test it. Hoping to get to it soon though! Thanks!
P0087 limp with LBZ EFI live
- Thread starter LBZ_Baker98
- Start date
Fuel filter was replaced about a thousand miles ago, you mean like a leaking filter housing?
Ever since I got EFI live about 700 miles ago, doesn't do it on my stock tune. Only my 60HP tune and above
You might be collapsing the fuel hose, the CP3 is working hard to keep up with your tune......
http://www.duramaxdiesels.com/forum/showthread.php?p=379184#post379184
http://www.duramaxdiesels.com/forum/showthread.php?p=379184#post379184
Running out of fuel, get a lift pump.
I had the same problem. About 55-60 it would fall on it's face.
https://www.youtube.com/watch?v=aOKMUyGd5zI
Same tune, after lift pump. Does not slow down, and P0087 is gone.
https://www.youtube.com/watch?v=wQP_qZdIrdQ
I had the same problem. About 55-60 it would fall on it's face.
https://www.youtube.com/watch?v=aOKMUyGd5zI
Same tune, after lift pump. Does not slow down, and P0087 is gone.
https://www.youtube.com/watch?v=wQP_qZdIrdQ
Awesome! Hopefully ill get a pump next week and I'll report back! Thanks for the help and suggestions guys! Appreciate it!
Get a air dog 165 with the 4g motor. Super quiet and haven't heard of a failure yet. 5 times less noise then their reg motor.
Just to muddy the water, I'll throw my vote in for the KENNEDY pump. EXTREMELY quiet, very low current draw, and plenty of fuel to support most any stock trans truck. I'm well beyond stock trans safe levels, and still doing fine with one of his single pumps(really should go to duals at my level though).
I'll throw another one in for Kennedy. For the price of another brand system, you also get the upgraded pickup tube and a sweet little primer button 
Parker/Racor PFF50216, ACDelco has not been forthcoming about ratings when the part number changed to the TP3018 from the TP3012. Parker/Racor no longer supplies filters to ACDelco.
http://www.dieselplace.com/forum/76...ce-fluids/714962-new-fuel-filter-changes.html
Okay so I gave the fuel filter some thought and although I did change my fuel filter recently it was a cheap autozone filter. So I went and bought a ac delco filter. When I went to change it my cheap autozone filter was pretty loose. Was able to spin it off by hand with out any struggle at all. Probably could have spun it off with 2 fingers with some effort. Could I have been sucking air? I haven't had time to take it for a WOT run yet but maybe it was sucking air when under pressure? Or maybe I'm delusional? :roflmao: