Last Fuel Rail Question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

rocksteady_racer · 12-09-2007, 12:00 PM

I bored the hole out on the one side and installed a M8 size bolt instead of stock. The rail fits fine and doesn't leak. However, the car will only run for a 30 seconds and shut off. There isn't much gas in the tank so that could be the problem. I thought maybe if the fuel lines were installed backwards or something that that might cause that or something. Anyway, I installed the line coming from the fuel filter into the fuel rail line and the line from the fpr is on the other line (the one right next to the firewall. I know the pump lines are on right. Any help would be greatly appreciated. Thanks in advance.

It takes a few turns to start up which I thought was odd since before it would start right up. Maybe a vacuum leak or something? Again thanks in advance.

If I disconnect the vacuum line from the fpr the car will run fine and doesn't seem to stall as easy. Anybody know why this would happen? The vacuum in the hose isn't strong enough or something? Thanks in advance

smelly240 · 12-09-2007, 12:37 PM

take a picture - im confused

burnsauto · 12-09-2007, 12:42 PM

do you know the fuel pressure when the vacuum line is installed on the fpr?

rocksteady_racer · 12-09-2007, 01:03 PM

It's all stock - sohc

I don't have a fuel pressure gauge so I couldn't tell the pressure running off the rail.

Two fuel lines one runs straight one curves
I hooked the straight one to the FPR and the curvy one to the fuel rail

here is the fpr, I disconnected that vacuum hose right there. The big circular thing on top is hooked up right (EGR I think) so this is just baffling me unless one of the hoses aren't hooked up right? Maybe i should cut it and try because I think it has a small kink in it but that doesn't make sense why it would work better when it's unplugged.

rocksteady_racer · 12-09-2007, 04:41 PM

I've judged it down to bad gas. I put some 93 in and it's running alot better than it was.

12-09-2007, 12:37 PM	#2
smelly240 Nissanaholic! Join Date: Oct 2006 Location: Philaburbia Age: 47 Posts: 2,137 Trader Rating: (4) Feedback Score: 4 reviews	take a picture - im confused __________________ HREs on a S13 - check, 6262 - check, Girlfriend.... - nope

12-09-2007, 12:42 PM	#3
burnsauto Post Whore! Join Date: Dec 2006 Location: 717, PA Age: 39 Posts: 3,324 Trader Rating: (6) Rides Gallery: burnsauto Feedback Score: 6 reviews	do you know the fuel pressure when the vacuum line is installed on the fpr? __________________

12-09-2007, 01:03 PM	#4
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Here are some pics It's all stock - sohc I don't have a fuel pressure gauge so I couldn't tell the pressure running off the rail. Two fuel lines one runs straight one curves I hooked the straight one to the FPR and the curvy one to the fuel rail here is the fpr, I disconnected that vacuum hose right there. The big circular thing on top is hooked up right (EGR I think) so this is just baffling me unless one of the hoses aren't hooked up right? Maybe i should cut it and try because I think it has a small kink in it but that doesn't make sense why it would work better when it's unplugged.

12-09-2007, 04:41 PM	#5
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	Ok I've judged it down to bad gas. I put some 93 in and it's running alot better than it was.

12-09-2007, 12:00 PM	#1
rocksteady_racer Zilvia Junkie Join Date: Oct 2005 Location: Phila Age: 39 Posts: 544 Trader Rating: (0) Feedback Score: 0 reviews	I bored the hole out on the one side and installed a M8 size bolt instead of stock. The rail fits fine and doesn't leak. However, the car will only run for a 30 seconds and shut off. There isn't much gas in the tank so that could be the problem. I thought maybe if the fuel lines were installed backwards or something that that might cause that or something. Anyway, I installed the line coming from the fuel filter into the fuel rail line and the line from the fpr is on the other line (the one right next to the firewall. I know the pump lines are on right. Any help would be greatly appreciated. Thanks in advance. It takes a few turns to start up which I thought was odd since before it would start right up. Maybe a vacuum leak or something? Again thanks in advance. If I disconnect the vacuum line from the fpr the car will run fine and doesn't seem to stall as easy. Anybody know why this would happen? The vacuum in the hose isn't strong enough or something? Thanks in advance