fuel pressure drops to 0 with car on

[Scoobystyl]

Heres my problem i just installed a fuel lab fpr and i can set the pressure/see the pressure on the gauge but i only have a second before the pressure bleeds off to 0 on the gauge but i know theres still pressure because the car runs fine

 

[Scoobystyl]

Is this possibly just a bad gauge issue? i pulled the fuel pump to check and see if it was leaking from there and everything was good, still put a new oring on and made sure everything seated properly, and still does it, theres no leaks anywhere

 

[Scoobystyl]

Still having issues with this, now my ve table is maxed up top, any ideas?

 

[snowborder714]

If your VE table is maxed out up top, then you need to lower your global # and then scale the whole table down (easiest way to scale down is to use LinkTools).

 

[Scoobystyl]

The thing is with the scaling when i had the stock fpr nothing went over 97, nothing else changed other than the fpr. or am i looking it it wrong, you dont think its a bad fpr?

 

[snowborder714]

Have you pulled the FPR apart to verify the diaphragm is in good condition? If so, and you have no kinks in any lines, I'd try swapping out the gauge. Fuelab makes some good components, but anything can happen.

 

[Scoobystyl]

I have not checked it yet, it had this issue the first time i started the car, it was brand new. but its easy enough to check ill go take a look now

i took it apart and the diaphragm was good so i took off the gauge and emptied all the liquid, started the car and the gauge worked but as it ran the gauge filled up with fuel and slowly dropped to 0, id guess that means the gauge was bad

 

[snowborder714]

Sounds like you found the problem.

 

[Scoobystyl]

Yeah that should fix it