quick fuel question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

smithers584 · 04-09-2006, 11:21 AM

ok so i have my FPR set at 38 psi on a s13 sr20det. i just drove it to grab a bite to eat, came home and ate, then went to work on the car and noticed in the meantime my fuel pressure has already dropped to 0. is this normal, i have never seen it before on my car, sounds kinda odd.

thanks
josh

neverlift · 04-09-2006, 11:32 AM

well fellow josh, mine does this after about an hour from close to 45psi on ka,I think someone said leaky injector or seals

Ritz S14 · 04-09-2006, 11:36 AM

That is normal.

smithers584 · 04-09-2006, 12:16 PM

ok i know that overtime it is supposed to release pressure, but this just seamed to be real fast. anyway, i know it is definately not a leaky injector, i pulled the full rail back and primed the system and there isnt the slightest bit of evidence showing that an injector might be leaking. thanks for the help guys.

slider2828 · 04-10-2006, 10:41 AM

Nope its normal. I have new injectors and injector seals, my pressure drops right when I turn off the car or like a min later.

ryan hagen · 04-15-2006, 12:19 PM

when i turn my key on the fuel pump turns on, my pressure goes to 43 then the pump turns off and it goes right to 0, that shouldnt happen right? the pump is a walbro 255

04-09-2006, 11:21 AM	#1
smithers584 Zilvia Junkie Join Date: Dec 2004 Location: sc Posts: 416 Trader Rating: (0) Feedback Score: 0 reviews	quick fuel question ok so i have my FPR set at 38 psi on a s13 sr20det. i just drove it to grab a bite to eat, came home and ate, then went to work on the car and noticed in the meantime my fuel pressure has already dropped to 0. is this normal, i have never seen it before on my car, sounds kinda odd. thanks josh

04-09-2006, 11:32 AM	#2
neverlift Zilvia Member Join Date: Jan 2006 Location: DUVAL Posts: 166 Trader Rating: (0) Feedback Score: 0 reviews	well fellow josh, mine does this after about an hour from close to 45psi on ka,I think someone said leaky injector or seals __________________ derp derp

04-15-2006, 12:19 PM	#6
ryan hagen Zilvia FREAK! Join Date: Jan 2003 Location: rhinelander wisconsin Age: 42 Posts: 1,465 Trader Rating: (8) Feedback Score: 8 reviews	when i turn my key on the fuel pump turns on, my pressure goes to 43 then the pump turns off and it goes right to 0, that shouldnt happen right? the pump is a walbro 255 __________________ 1990 hatch ka24de gt2871r

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04-09-2006, 11:36 AM	#3
Ritz S14 Post Whore! Join Date: Jul 2004 Location: C A L I F O R N I A Age: 43 Posts: 3,586 Trader Rating: (0) Feedback Score: 0 reviews	That is normal.

04-09-2006, 12:16 PM	#4
smithers584 Zilvia Junkie Join Date: Dec 2004 Location: sc Posts: 416 Trader Rating: (0) Feedback Score: 0 reviews	ok i know that overtime it is supposed to release pressure, but this just seamed to be real fast. anyway, i know it is definately not a leaky injector, i pulled the full rail back and primed the system and there isnt the slightest bit of evidence showing that an injector might be leaking. thanks for the help guys.

04-10-2006, 10:41 AM	#5
slider2828 Post Whore! Join Date: Oct 2004 Location: San Francisco, CA Posts: 6,040 Trader Rating: (13) Feedback Score: 13 reviews	Nope its normal. I have new injectors and injector seals, my pressure drops right when I turn off the car or like a min later.