i can disconnect all injectors and car still runs?! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

monkey7 · 08-06-2009, 02:04 AM

i recently got a fuel rail with injectors and swapped mine out as i thought one of my injectors might be clogged. when i go to start my car it runs real rough like 3 cylinders are firing. but the wierd thing is i can disconnect all 4 injectors and the car still runs! could my fuel regulator be bad? or can most of my injectors be all stuck open?

*hOngsterr* · 08-06-2009, 02:25 AM

mine started to act up too.
my car sounds like a subaru.
and when i accel it sputters.
=[
and its not my injectors either,

I LUV MY S13 · 08-06-2009, 02:27 AM

Quote:

Originally Posted by hOngsterr

mine started to act up too.
my car sounds like a subaru.
and when i accel it sputters.
=[
and its not my injectors either,

dude have u checked ur codes yet??!?

junbugs13 · 08-06-2009, 03:05 AM

did you replace all the seals on the injectors inside the rail cuz it might have a leak just enought to keep the car runnin i had that same prob. but mine was way worst.

*hOngsterr* · 08-06-2009, 03:14 AM

Quote:

Originally Posted by I LUV MY S13

dude have u checked ur codes yet??!?

haven't used a computer on it
lol

junbugs13 · 08-06-2009, 03:20 AM

put the rail off the motor but leave the fuel liines on it and turn the car on so it primes the car and see if fuel come anywhere else besides the center of the injector if so you found yur prob. and replace all seals on the injectors all four cuz if one is bad all of them will go bad soon

waynehead05 · 08-06-2009, 03:46 AM

like this ? YouTube - The Magic SR

My sr did that too a while back

xpertsnowcarver · 08-06-2009, 06:44 AM

Hahaha! Fuel injector leaks up the butt man.. Why would you disconnect the fuel injector harness and run the motor anyway?? Look up your FSM. The diagnostic is 5th grade level easy to read. Have some patients and read it. You'll see.

Injectors can't get stuck open unless current is constantly flowing through it. I'm sure your FPR is fine. You did make sure to reconnect the vacuum line that belongs to it, right?

Tantwoforty · 08-06-2009, 04:42 PM

i would vote just bad seals... autozone sells new o rings for cheap may as well try that first... after you run the car and turn it off will it start again? i had a leaky injector and it would flood my cylinder and the car wouldn't start for a while unless i unplugged it and cranked the car a few times... then i would fire up and die once it ran out of fuel in the rail.. then i would plug in all 4 injectors and it would fire right up...

punk138 · 08-22-2009, 01:18 AM

i have the same problem with cylinders 3 and 4.

im running on only cylinders 1 and 2.

i get spark to all 4

and 3 and 4 are both flooded with fuel.

when i disconnect cylinder 1 or 2 pigtail the engine dies.
but when i disconnect cylinder 3 or 4 nothing changes...

WTF?!?!?!!?

someone please help!!!

ps i bought new fuel filter, injector o ring kit, new spark plugs, new wires, and fresh tune up and great compression to all four due to piston ring swap....oh and new MAF and new timing chain kit...

blackrms13 · 08-22-2009, 03:41 AM

Quote:

Originally Posted by hOngsterr

haven't used a computer on it
lol

take out the ECU and check it

dont need any computer/tools

well a ratchet and a flat head screw driver...

S-Nation S13 · 08-22-2009, 08:50 AM

to be honest the sounding like a subaru topic has been covered if its not your injectors and you positive it isnt then check the seals on the them those fail to!!! havin the injector not fire cause its soaked with gas will give the same affect as if it was a malfuntioning injector!!

BUT DAMN HOW THE HELL DO YOU RUN A CAR WITHOUT INJECTORS?? OR HAVING THEM DISCONNECTED??

Dousan_PG · 08-22-2009, 09:37 AM

seriously?
fuel pump is still on
there for fuel is still going thru the rail and thru the injectors.

punk138 · 08-24-2009, 12:15 PM

found the problem.

my cam broke in half!! fml

i was running on two cylinders...how the fuck do you break a cam? ive never messed with it, its the original cam from the motor when i bought the car back in 07!

08-06-2009, 02:04 AM	#1
monkey7 Zilvia Member Join Date: Feb 2004 Location: bay area Posts: 286 Trader Rating: (0) Feedback Score: 0 reviews	i can disconnect all injectors and car still runs?! i recently got a fuel rail with injectors and swapped mine out as i thought one of my injectors might be clogged. when i go to start my car it runs real rough like 3 cylinders are firing. but the wierd thing is i can disconnect all 4 injectors and the car still runs! could my fuel regulator be bad? or can most of my injectors be all stuck open?

08-06-2009, 03:05 AM	#4
junbugs13 Leaky Injector Join Date: May 2009 Location: riverside Age: 36 Posts: 73 Trader Rating: (0) Feedback Score: 0 reviews	did you replace all the seals on the injectors inside the rail cuz it might have a leak just enought to keep the car runnin i had that same prob. but mine was way worst. __________________

08-06-2009, 03:20 AM	#6
junbugs13 Leaky Injector Join Date: May 2009 Location: riverside Age: 36 Posts: 73 Trader Rating: (0) Feedback Score: 0 reviews	put the rail off the motor but leave the fuel liines on it and turn the car on so it primes the car and see if fuel come anywhere else besides the center of the injector if so you found yur prob. and replace all seals on the injectors all four cuz if one is bad all of them will go bad soon __________________

08-06-2009, 03:46 AM	#7
waynehead05 Zilvia Junkie Join Date: May 2005 Location: Dallas Age: 38 Posts: 466 Trader Rating: (1) Feedback Score: 1 reviews	like this ? YouTube - The Magic SR My sr did that too a while back __________________ Who in their right mind would want to lead this nation of Me-First Right-Now Do Nothings??

08-06-2009, 06:44 AM	#8
xpertsnowcarver Post Whore! Join Date: Jan 2007 Location: LA, CA Posts: 2,667 Trader Rating: (44) Feedback Score: 44 reviews	Hahaha! Fuel injector leaks up the butt man.. Why would you disconnect the fuel injector harness and run the motor anyway?? Look up your FSM. The diagnostic is 5th grade level easy to read. Have some patients and read it. You'll see. Injectors can't get stuck open unless current is constantly flowing through it. I'm sure your FPR is fine. You did make sure to reconnect the vacuum line that belongs to it, right? __________________ My YouTube Channel

08-06-2009, 04:42 PM	#9
Tantwoforty Nissanaholic! Join Date: May 2009 Location: Riverside ca Age: 35 Posts: 1,890 Trader Rating: (20) Feedback Score: 20 reviews	i would vote just bad seals... autozone sells new o rings for cheap may as well try that first... after you run the car and turn it off will it start again? i had a leaky injector and it would flood my cylinder and the car wouldn't start for a while unless i unplugged it and cranked the car a few times... then i would fire up and die once it ran out of fuel in the rail.. then i would plug in all 4 injectors and it would fire right up...

08-22-2009, 01:18 AM	#10
punk138 Zilvia Addict Join Date: Nov 2007 Location: BroCal Posts: 602 Trader Rating: (12) Feedback Score: 12 reviews	i have the same problem with cylinders 3 and 4. im running on only cylinders 1 and 2. i get spark to all 4 and 3 and 4 are both flooded with fuel. when i disconnect cylinder 1 or 2 pigtail the engine dies. but when i disconnect cylinder 3 or 4 nothing changes... WTF?!?!?!!? someone please help!!! ps i bought new fuel filter, injector o ring kit, new spark plugs, new wires, and fresh tune up and great compression to all four due to piston ring swap....oh and new MAF and new timing chain kit... __________________ yes we still roll fenders

08-22-2009, 08:50 AM	#12
S-Nation S13 Post Whore! Join Date: Jan 2008 Location: LAND of the LOST Posts: 4,083 Trader Rating: (92) Feedback Score: 92 reviews	to be honest the sounding like a subaru topic has been covered if its not your injectors and you positive it isnt then check the seals on the them those fail to!!! havin the injector not fire cause its soaked with gas will give the same affect as if it was a malfuntioning injector!! BUT DAMN HOW THE HELL DO YOU RUN A CAR WITHOUT INJECTORS?? OR HAVING THEM DISCONNECTED?? Last edited by S-Nation S13; 08-22-2009 at 09:19 AM..

08-22-2009, 09:37 AM	#13
Dousan_PG Post Whore! Join Date: May 2002 Location: Orange County, California Age: 46 Posts: 16,640 Trader Rating: (23) Rides Gallery: Dousan_PG Feedback Score: 23 reviews	seriously? fuel pump is still on there for fuel is still going thru the rail and thru the injectors. __________________ Aaron Pink GodziRa www.geocities.com/pink_godzira

08-24-2009, 12:15 PM	#14
punk138 Zilvia Addict Join Date: Nov 2007 Location: BroCal Posts: 602 Trader Rating: (12) Feedback Score: 12 reviews	found the problem. my cam broke in half!! fml i was running on two cylinders...how the fuck do you break a cam? ive never messed with it, its the original cam from the motor when i bought the car back in 07! __________________ yes we still roll fenders