N/A SR sputtering when flooring it @ 3500??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

DDDsquad_s13panda · 05-04-2009, 08:59 AM

Oright well since i got my car up and running due to faulty fuel pump, i had yet came across another problem, but never really thought anything of it.

Problem:

Everytime i floor it, no matter what gear im in, it will sputter as if its choking after 3500 rpm and it will keep goin until i get to rev limit which is 7300.

but when i drive fine and slowly increase my RPM, it would do just fine, but not as much of a sputter.

Im really leaning on to doing a full tune-up such as new spark plugs. plug wires, rotor and cap..

But i just want another opinion before i convert everything from OEM to MSD/NGK.

am i on the right track or i should check something else out first?

Is there anywhere else this problem is coming from? besides the sparks thats it... ?

Thanks in advance,

-john

EDIT: my mods if it helps

short ram intake
APexi power filter
370cc injectors
DET manifold
walbro 255 fuel pump
Z TT fuel filter

SidewayZ-s14 · 05-04-2009, 09:01 AM

Do everything that you said you were going to do, and then purchase yourself a new fuel filter.

05-04-2009, 10:50 AM

check your ignition to sparkplug connections, could have water in there

DDDsquad_s13panda · 05-04-2009, 03:53 PM

WOW really no more inputs besides these two?..

well thanks sidewayZ and ixfxi. ill go ahead and check those two.

johngriff · 05-04-2009, 04:09 PM

tps voltage check?

s14unimog · 05-05-2009, 07:27 AM

$20 says its a bad coil pack...

nvm its an N/A model....

check to see if your MAFS is responding correctly. You can watch the signal voltage with a multimeter and blow through the MAFS its self. Also verify that base voltage is correct and there is continuity to the frame.

GL

*fliprayzin240sx* · 05-05-2009, 07:49 AM

Water temp sensor or o2 sensor...

jaebo · 11-27-2009, 04:45 PM

my car was doing that same exact thing..n it only got worse as i replaced everything that wasnt bad, come to find out it was my fuel tank that was rusting out n clogging up everything. fuel tank strainer filter n injectors etc. take off ur fuel filter n bang out everything in it. if rusty gas comes out or it sounds like sand is in there then you got the same prob

05-04-2009, 08:59 AM	#1
DDDsquad_s13panda BANNED Join Date: Dec 2007 Location: Fontana, IE. Age: 38 Posts: 550 Trader Rating: (7) Feedback Score: 7 reviews	N/A SR sputtering when flooring it @ 3500??? Oright well since i got my car up and running due to faulty fuel pump, i had yet came across another problem, but never really thought anything of it. Problem: Everytime i floor it, no matter what gear im in, it will sputter as if its choking after 3500 rpm and it will keep goin until i get to rev limit which is 7300. but when i drive fine and slowly increase my RPM, it would do just fine, but not as much of a sputter. Im really leaning on to doing a full tune-up such as new spark plugs. plug wires, rotor and cap.. But i just want another opinion before i convert everything from OEM to MSD/NGK. am i on the right track or i should check something else out first? Is there anywhere else this problem is coming from? besides the sparks thats it... ? Thanks in advance, -john EDIT: my mods if it helps short ram intake APexi power filter 370cc injectors DET manifold walbro 255 fuel pump Z TT fuel filter Last edited by DDDsquad_s13panda; 05-04-2009 at 09:18 AM.. Reason: edit

05-04-2009, 04:09 PM	#5
johngriff Post Whore! Join Date: Jun 2004 Location: Long Beach, CA Posts: 4,103 Trader Rating: (4) Rides Gallery: johngriff Feedback Score: 4 reviews	tps voltage check? __________________ [email protected]

05-05-2009, 07:27 AM	#6
s14unimog Nissanaholic! Join Date: Dec 2003 Location: In a place, near a river, over a lake Age: 38 Posts: 2,415 Trader Rating: (22) Rides Gallery: s14unimog Feedback Score: 22 reviews	$20 says its a bad coil pack... nvm its an N/A model.... check to see if your MAFS is responding correctly. You can watch the signal voltage with a multimeter and blow through the MAFS its self. Also verify that base voltage is correct and there is continuity to the frame. GL __________________ Fuking ginger bread man stole my wallet... SHIFT*lock_slide to side d3m3rs0n: if i have a baby im naming it Brandons Fault Emerson

05-05-2009, 07:49 AM	#7
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Water temp sensor or o2 sensor... __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

05-04-2009, 09:01 AM	#2
SidewayZ-s14 BANNED Join Date: Nov 2007 Location: SoCal 714 Posts: 1,061 Trader Rating: (14) Feedback Score: 14 reviews	Do everything that you said you were going to do, and then purchase yourself a new fuel filter.

05-04-2009, 10:50 AM	#3
ixfxi Guest Posts: n/a	check your ignition to sparkplug connections, could have water in there

05-04-2009, 03:53 PM	#4
DDDsquad_s13panda BANNED Join Date: Dec 2007 Location: Fontana, IE. Age: 38 Posts: 550 Trader Rating: (7) Feedback Score: 7 reviews	WOW really no more inputs besides these two?.. well thanks sidewayZ and ixfxi. ill go ahead and check those two.

11-27-2009, 04:45 PM	#8
jaebo Join Date: Nov 2009 Location: largo florida Age: 34 Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	my car was doing that same exact thing..n it only got worse as i replaced everything that wasnt bad, come to find out it was my fuel tank that was rusting out n clogging up everything. fuel tank strainer filter n injectors etc. take off ur fuel filter n bang out everything in it. if rusty gas comes out or it sounds like sand is in there then you got the same prob