02 Sentra SE-R Spec V

[hudy]

I am getting extended crank on this one. Fuel pressure is dropping off when key is off. Pretty much points to a bad pump. But is there a fuel pressure regulator some where I am not seeing? I know it is a returnless fuel system. Just curious where the regulator is. And where do you suggest to get the replacement parts? I called the dealer about the pump. It is almost $400 list price. Thanks in advance.

[s13sr20chris]

regulator is part of pump assembly. those cars are famous for long crank or even no start due to flooding. even if you are really really sure its a pump problem try this.

pull fuse or relay for fuel pump.

pull plugs and clean them vigorously with brake parts cleaner.

let cyls air dry for a while(and plugs too).

reinstall plugs.

crank motor for a while(no start due to fuel pump off).

hook fuel pump back up.

start motor(may take some accelerator pedal action, may not).

if no worky, repeat.

[hudy]

I know the fuel pressure is dropping off b/c I hooked a gauge up. It was `60 p.s.i. while running. When you shut it off it drops to 0. That usually points to a bad regulator or pump. I was just curious as to know fuel pump issues with her. I went to a b15 site and found a bulletin for extended crank complaints. Apparently there is a problem with the regulators. There is a regulator replacement kit available, but I am afriad that when I dissasemble the pump it will break. I think I am going to just go with a new pump assembly from the dealer.

Here is the bulletin for those interested in the fix. It has part numbers and instructions on replacement. Enjoy!http://www.nissanhelp.com/Owne...2.htm

[hudy]

Oh yeah, the plugs look fine and there is no signs of fuel soak(like leaky injectors). It does appear to be burning a little oil though (ash deposits). I have seen way worse so I'm not to worried about that right now.

[s13sr20chris]

oh, ok. well good luck withthe regulator. when i still worked for nissan that kit was not out(or i just didnt hear about it). nice thing they are doing there.

[hudy]

Ya, but try disassembling a plastic fuel pump that has been immersed in fuel for 4 years. I'm sure it is as brittle as all get out. I would consider the kit if the car were newer.