fuel issue

[eclipsalon]

main problem is at full throttle car has no gas according to the fuel pressure gauge. at idle it reads 50psi and once u give it gas it drops to 0 if u hold it. car starts fine evry time but once givin gas it starts to stutter. pls help

 

[Absit]

Where exactly are you reading your fuel pressure from?

 

[rlacasse1]

^^^^^ That.

And how old is your fuel filter? Have you replaced it?

 

[eclipsalon]

filter was replaced few days ago, and readings are coming from the regulator, replaced the whole fpr too. if i unhook the return line and WOT no fuel comes out

 

[Absit]

Update your profile and give us a full mod list so we know what we're dealing with here, then we can address issues.

Like, what regulator are you running?

 

[eclipsalon]

Its for a different n/t car. Fully stock and the fpr is one of the universal ones off e bay.

 

[2gGSXEclipse]

Its for a different n/t car. Fully stock and the fpr is one of the universal ones off e bay.

I would question the Knock off FPR. Obviously the stock one worked before installing this. Install the stock regulator and see if it fixes the problem. Thats where I would start

 

[eclipsalon]

i changed out the fpr because of the prob to try and fix it, so even with the stock one i had the same issue, but im thinking fuel pump might be going out? opinions??

 

[rlacasse1]

Sounds like the fuel pump to me. Or possibly the O-ring that sits on top of the fuel pump. Have you checked how many volts are making it to the pump with a voltemeter. You can check that out as well, and rewire it if you don't have much.

 

[jed344]

ya it check the 0 ring on the pump aswell as maybe replace the pump. ### for it to loose pressue like crazy at the rail. and you have a new filter. Has to be not keeping up or not building up pressure.