I cant get this damn thing to run right! help!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

joel · 01-20-2005, 10:10 AM

hey,
i have a 1991 240 coupe that i havent been able to really drive for a good 5 months because its been having some problems. If you could help that would be awesome.

ok. so when i first start the car up after its been sitting for awhile, it cranks like a champ. no problems. Now, if i were to crank it and say let off the starter to soon and try to start it then most likely it wont crank. it will just keep trying to crank and trying to crank and if i do it long enough then it slowly acts like the starter diisconnected from the flywheel like the engine doesnt even shake or anything. i dont know what that is about.
but whenever i try to start it and it doesnt i smell fuel pretty badly.
Oh and when i am driving at really low rpm's the car is buck alot back and forth. It just seems like no matter how long i drive it whether it be 30 min. or 1 min if i turn it off it wont start back. please help if at all possible. i really want to drive my baby soon. thanks in advance. joel

89s132b · 01-20-2005, 12:49 PM

Most likely, you have leaking fuel injectors. Pull them out and check the o-rings. Just replace all the o-rings while you are at it.

You probably get black smoke and poor gas mileage too?

joel · 01-20-2005, 02:05 PM

yea,its getting pretty shitty gas mileage im not sure about the smoke. do you think that is what it is? what all do i need to remove the injectors?? thanks

s13irdie2 · 01-20-2005, 02:46 PM

check your fuel filter also.

idlafie · 01-21-2005, 02:38 AM

Check your fuel pressure regulator on the fuel rail. Hook it up to vacuum gauge and see what pressure it's at while at idle. I think it should be at 35 psi.
The attached links give more info...
http://www.tradervar.com/Fuel%20Syst...%20Testing.htm
http://www.stcloudchampionauto.com/pdf/57_PressReg.pdf#search='testing%20fuel%20pressure% 20regulator'
http://www.directdiagnostics.co.uk/t...uel%20flow.htm
Anyhow...hope this helps..
ID
PS:
If you figure out the problem, can you please post the cure....thanks!!

joel · 01-23-2005, 12:53 PM

what all tools do i need to remove the injectors and check the fpr ?? does anyone else have any suggestions while on working on it?

joel · 01-24-2005, 05:33 PM

bump bump

the head · 01-25-2005, 08:36 AM

have you looked under the hood yet the removal is rather straightforward go buy a chiltons manual to help you out

doainwpg · 01-25-2005, 09:38 PM

either buy a chiltons or download the fsm from here http://www.zeroyon.com/TheSite/techservice.html

01-20-2005, 10:10 AM	#1
joel Leaky Injector Join Date: Feb 2003 Location: georgia Age: 42 Posts: 76 Trader Rating: (0) Feedback Score: 0 reviews	I cant get this damn thing to run right! help!! hey, i have a 1991 240 coupe that i havent been able to really drive for a good 5 months because its been having some problems. If you could help that would be awesome. ok. so when i first start the car up after its been sitting for awhile, it cranks like a champ. no problems. Now, if i were to crank it and say let off the starter to soon and try to start it then most likely it wont crank. it will just keep trying to crank and trying to crank and if i do it long enough then it slowly acts like the starter diisconnected from the flywheel like the engine doesnt even shake or anything. i dont know what that is about. but whenever i try to start it and it doesnt i smell fuel pretty badly. Oh and when i am driving at really low rpm's the car is buck alot back and forth. It just seems like no matter how long i drive it whether it be 30 min. or 1 min if i turn it off it wont start back. please help if at all possible. i really want to drive my baby soon. thanks in advance. joel __________________ joel wikle

01-20-2005, 02:05 PM	#3
joel Leaky Injector Join Date: Feb 2003 Location: georgia Age: 42 Posts: 76 Trader Rating: (0) Feedback Score: 0 reviews	yea,its getting pretty shitty gas mileage im not sure about the smoke. do you think that is what it is? what all do i need to remove the injectors?? thanks __________________ joel wikle

01-20-2005, 02:46 PM	#4
s13irdie2 Zilvia Junkie Join Date: Jan 2003 Location: southern cali Age: 38 Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	check your fuel filter also. __________________ 1990 s13 IslandMotorsports, Inc.

01-21-2005, 02:38 AM	#5
idlafie Zilvia Addict Join Date: Mar 2004 Location: ..So Cal.... Posts: 940 Trader Rating: (0) Feedback Score: 0 reviews	Check your fuel pressure regulator on the fuel rail. Hook it up to vacuum gauge and see what pressure it's at while at idle. I think it should be at 35 psi. The attached links give more info... http://www.tradervar.com/Fuel%20Syst...%20Testing.htm http://www.stcloudchampionauto.com/pdf/57_PressReg.pdf#search='testing%20fuel%20pressure% 20regulator' http://www.directdiagnostics.co.uk/t...uel%20flow.htm Anyhow...hope this helps.. ID PS: If you figure out the problem, can you please post the cure....thanks!! __________________ Weekend Mechanic for my Not-So-Mechanically-Inclined buddies....

01-23-2005, 12:53 PM	#6
joel Leaky Injector Join Date: Feb 2003 Location: georgia Age: 42 Posts: 76 Trader Rating: (0) Feedback Score: 0 reviews	what all tools do i need to remove the injectors and check the fpr ?? does anyone else have any suggestions while on working on it? __________________ joel wikle

01-20-2005, 12:49 PM	#2
89s132b Zilvia Member Join Date: Apr 2003 Location: Oklahoma Posts: 220 Trader Rating: (0) Feedback Score: 0 reviews	Most likely, you have leaking fuel injectors. Pull them out and check the o-rings. Just replace all the o-rings while you are at it. You probably get black smoke and poor gas mileage too?

01-24-2005, 05:33 PM	#7
joel Leaky Injector Join Date: Feb 2003 Location: georgia Age: 42 Posts: 76 Trader Rating: (0) Feedback Score: 0 reviews	bump bump __________________ joel wikle

01-25-2005, 08:36 AM	#8
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	have you looked under the hood yet the removal is rather straightforward go buy a chiltons manual to help you out __________________ I never knew you could do that with an eggplant

01-25-2005, 09:38 PM	#9
doainwpg Leaky Injector Join Date: Apr 2003 Location: canada Age: 40 Posts: 74 Trader Rating: (0) Feedback Score: 0 reviews	either buy a chiltons or download the fsm from here http://www.zeroyon.com/TheSite/techservice.html __________________ Life's the race everyone's dying to win Free Ipods Here