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View Full Version : N/A SR sputtering when flooring it @ 3500???

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... ?:bash:


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.
ixfxi
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:fawk: