LBZ: Fuel rail pressure low??

[Shieldsinc]

I have a lbz w a edge juice w attitude and when you get it in overdrive and lug it to where it's smokes a lot it throws a code and says fuel rail pressure low. I'm bout to et efi live from duramax tuner w there race tune. Do I need to upgrade my cp3 or what. Any help is appreciated and I know this is in the wrong section. I'm new to the forum thanks

 

[xtremebikr04]

I have a lbz w a edge juice w attitude and when you get it in overdrive and lug it to where it's smokes a lot it throws a code and says fuel rail pressure low. I'm bout to et efi live from duramax tuner w there race tune. Do I need to upgrade my cp3 or what. Any help is appreciated and I know this is in the wrong section. I'm new to the forum thanks

If you dont already have a lift pump id start there.

 

[Shieldsinc]

I was lookin at a PPE lift pump and adding a filter and water separator to it. Would that wrk

 

[Dirtymaxx03]

In my opinion the PPE pump is a waste of money. Look into fass or airdog

 

[AdaMax]

fill out your sig that will help .

The lift pump is a must but there are other things to look into . Like your return rate of your injectors and your fprv may be returning fuel straight from your rail to the tank . I would put the pump on first though .

 

[Shieldsinc]

So get an air dog or fass. What about raptor lift pumps. And can anyone tell me how I get to the sig? Tryin to fill it out

 

[TRUBBS]

Click user cp at top left, when the page changes look for edit signature down the left side. Fill it out at save.


Also, I think raptor is just a cheaper air dog only without the filters, not 100% sure tho.

 

[Shieldsinc]

Cool. Thanks for your help and I seen where someone on here did a DIY raptor and added filters to it. I liked it cause they used napa filters. You think that would wrk just as good as an air dog

 

[WisconsinMax]

First thing I would do is ditch the Edge and get EFI Live. The Juice is junk IMO. You shouldn't be draining rails while feathering the throttle.

 

[Sledheadxp800r]

Have you changed your fuel filter yet?

 

[Shieldsinc]

Yea I changed it not to long ago. But it's always done it since I got the edge. It's not when u feather the throttle it's Luke if ur racing and lay into it u only have about a quarter mile or so of 100% pressure then it throws a code that says low fuel rail pressure and stops dumpin out smoke.