wierd sr starting problem - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Jasonx63 · 02-21-2012, 01:40 PM

I have searched and couldnt find to much.

I have an s13 black top 740denso injectors walbro pump z32 filter recently changed. I went out to my car last night and it didn't start so I pulled the fuel pump fuse and cranked until all my pressure was gone plugged the fuse back in and primed the pump and it fired right up and drove fine. I went to go get gas and it wouldnt start again so I unplugged the fuse and it bleed the fuel pressure put the fuse in and it fired and wouldn't start so I unplugged yhe fuse started it and while it was running off the pressure popped the fuse in it ran idled and boosted fine then this morning it started up and then I went to work and it did it again. Any clues would help thanks.

blessedhellrider · 02-21-2012, 01:48 PM

hum ...maybe a stuck or FP bad relay?

leaky injector?

FPR?

Jasonx63 · 02-21-2012, 01:53 PM

Just got an aeromotive fpr a doubt that's it because it holds pressure and when it runs I have solid afr readings

blessedhellrider · 02-21-2012, 02:04 PM

try not bleeding it ,just take the fuse out and wait a min and stick it back in.

another thing to try ,prime the system but have a fuel pressure gauge on it and see if has leakage!

pacotaco345 · 02-21-2012, 02:12 PM

Maybe you flooded it, that's what happens to me when I try to start my car w bad timing. The fuel won't light, then it floods, then when the timing is right it still wont start. Pull the fuel pump fuse and crank till it catches, then plug it back in and start it up.

JDMRIDDAZ · 02-21-2012, 02:17 PM

bad fuel pump circuit
my s13 did that till i rewired it

Jasonx63 · 02-21-2012, 02:19 PM

I have a fuel pressure gauge its at 43psi and ill try both of those but I just timed it and made sure the other night.

Jasonx63 · 02-21-2012, 02:20 PM

Quote:

Originally Posted by JDMRIDDAZ

bad fuel pump circuit
my s13 did that till i rewired it

What do you mean circuit. As in the fuel pump wiring? My harness is a wiring specialties harness so I'm sure its not that.

Jasonx63 · 02-22-2012, 05:07 PM

Bump for help

Jasonx63 · 02-23-2012, 11:01 PM

Figured it out was the coolant temp sensor was unplugged for some reason.

02-21-2012, 01:40 PM	#1
Jasonx63 Zilvia Member Join Date: Aug 2010 Location: Fresno Age: 33 Posts: 225 Trader Rating: (2) Feedback Score: 2 reviews	wierd sr starting problem I have searched and couldnt find to much. I have an s13 black top 740denso injectors walbro pump z32 filter recently changed. I went out to my car last night and it didn't start so I pulled the fuel pump fuse and cranked until all my pressure was gone plugged the fuse back in and primed the pump and it fired right up and drove fine. I went to go get gas and it wouldnt start again so I unplugged the fuse and it bleed the fuel pressure put the fuse in and it fired and wouldn't start so I unplugged yhe fuse started it and while it was running off the pressure popped the fuse in it ran idled and boosted fine then this morning it started up and then I went to work and it did it again. Any clues would help thanks.

02-21-2012, 02:12 PM	#5
pacotaco345 Zilvia FREAK! Join Date: Jan 2010 Location: SoCal/Ft Worth TX Age: 30 Posts: 1,563 Trader Rating: (5) Feedback Score: 5 reviews	Maybe you flooded it, that's what happens to me when I try to start my car w bad timing. The fuel won't light, then it floods, then when the timing is right it still wont start. Pull the fuel pump fuse and crank till it catches, then plug it back in and start it up. __________________

02-21-2012, 02:17 PM	#6
JDMRIDDAZ Zilvia Junkie Join Date: Sep 2007 Location: ｆォリダ Age: 47 Posts: 440 Trader Rating: (3) Feedback Score: 3 reviews	bad fuel pump circuit my s13 did that till i rewired it __________________ シチサｎ w/ka20det:in progress シチサｎw/sr20det:stolen

02-21-2012, 01:48 PM	#2
blessedhellrider Zilvia Member Join Date: Jan 2012 Location: tampaish Age: 42 Posts: 277 Trader Rating: (0) Feedback Score: 0 reviews	hum ...maybe a stuck or FP bad relay? leaky injector? FPR?

02-21-2012, 01:53 PM	#3
Jasonx63 Zilvia Member Join Date: Aug 2010 Location: Fresno Age: 33 Posts: 225 Trader Rating: (2) Feedback Score: 2 reviews	Just got an aeromotive fpr a doubt that's it because it holds pressure and when it runs I have solid afr readings

02-21-2012, 02:04 PM	#4
blessedhellrider Zilvia Member Join Date: Jan 2012 Location: tampaish Age: 42 Posts: 277 Trader Rating: (0) Feedback Score: 0 reviews	try not bleeding it ,just take the fuse out and wait a min and stick it back in. another thing to try ,prime the system but have a fuel pressure gauge on it and see if has leakage!

02-21-2012, 02:19 PM	#7
Jasonx63 Zilvia Member Join Date: Aug 2010 Location: Fresno Age: 33 Posts: 225 Trader Rating: (2) Feedback Score: 2 reviews	I have a fuel pressure gauge its at 43psi and ill try both of those but I just timed it and made sure the other night.

02-22-2012, 05:07 PM	#9
Jasonx63 Zilvia Member Join Date: Aug 2010 Location: Fresno Age: 33 Posts: 225 Trader Rating: (2) Feedback Score: 2 reviews	Bump for help

02-23-2012, 11:01 PM	#10
Jasonx63 Zilvia Member Join Date: Aug 2010 Location: Fresno Age: 33 Posts: 225 Trader Rating: (2) Feedback Score: 2 reviews	Figured it out was the coolant temp sensor was unplugged for some reason.