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SlamBurglars > General Discussion > Car Talk
3mos13
so i have no idea thats going on with my vehicle.

its defiantly some kind of fuel issue

for instance when i just drive the car it run perfectly with no problems

BUT when i get on it really hard (no homo) its starts to bogg and dies on me not to mention the motor floods every time this happens.

anyone know what might be going on?


thank youuuuu smile.gif
Ivan the Terrible
Did you check to O2? Did you check injectors? Spark plugs?

And you didn't mention what motor or set up you have ese
3mos13
QUOTE (Ivan the Terrible @ Jul 24 2011, 01:58 PM) *
Did you check to O2? Did you check injectors? Spark plugs?

And you didn't mention what motor or set up you have ese


spark plugs are new, o2 i have not checked, i have taken out my fuel real and injectors cleaned them and replaced the o-rings.

and its a ca18 with nothing much done to the motor, but i am running a s13 sr20 t25 @ 7 psi so i have not idea whats going on.

i was told if i boost more that might fix the problem but idk

Ivan the Terrible
Back probe the o2 but it still can be injector leaking. Does it miss fire at times.

When it bogs on WOT it seems more of an o2 sort of thing for nissans.


Back probe it and see what happens
3mos13
back probe? explain. i dont think there leaking and it never misfires.

or should i just replace the o2 sensor?
Ivan the Terrible
Like turn the car on and stick probes behind the connector and check to see if its working
3mos13
damn i wish i could do that. My 02 is spliced.
krammitthefrog
QUOTE (3mos13 @ Jul 24 2011, 12:28 PM) *
i was told if i boost more that might fix the problem but idk

lol, no

what type of ems is it running? is it tuned for an sr t25 (i dont know what a ca has stock)? when did it start? does it not start after (is that why you think its flooded)? is it high or low rpm?


need to provide more details.
3mos13
QUOTE (krammitthefrog @ Jul 24 2011, 03:08 PM) *
lol, no

what type of ems is it running? is it tuned for an sr t25 (i dont know what a ca has stock)? when did it start? does it not start after (is that why you think its flooded)? is it high or low rpm?


need to provide more details.



yes it is tuned for sr t25, started about 2 weeks ago, does not start afterwords ( i just got the car to start but it sounds super rough) and its at high rpm

sorry for lack of details.
Ivan the Terrible
Yea need better details, but maybe its spliced janky and causing the o2 to be faulty.

Fix that shit and use butt connectors and electrical tape. Is it a single wire o2 or 2 wire?


Just drive that shit to my house and ill fix it, its frustrating explaining stuff through text haha
krammitthefrog
doubt its o2. you can run the car without the o2 and you probably wouldnt notice except in the gas mileage department. well that all depends actually. how many wires on the o2? if its anywhere from 1-4 you would never tell. the whole time the car is in open loop its as if the o2 wasnt even there.

how is it tuned for a t25? is that t25 a stock sized turbo or did you upgrade the ems to ACTUALLY tune it?

fuel pump making any new excess noise? any fuel leaks/smell? is the boost consistent through the rpm range like its always been?
Ivan the Terrible
Actually robbert, with nissan the car does run like shit if the o2 doesnt work. happened with mine and it was the problem with rad mikes sr. member?

check the o2, i bet thats the bastard. it even reads that in my chilton for the ca18et which id expect is similar to the dual cam
krammitthefrog
on a wideband which is actually controlling afr's then yeah, but if its just a heated or even unheated o2 i dont think its the issue. even if it were its going to be worse in the lower rpm band than up top. i was talking to seth about it and we were thinking its ignition cutting out.
LubedTittes
Hrm, vacuum leak?
krammitthefrog
would cause more of an issue off idle than up top.
LubedTittes
Yeargh

Maybe replace the fuel pump, those can break

Use the chance to upgrade to a Walbro 255 biggrin.gif
Nachtmensch
QUOTE (Ivan the Terrible @ Jul 24 2011, 02:36 PM) *
When it bogs on WOT it seems more of an o2 sort of thing for nissans.

It won't be the O2 sensor. When at WOT, the ECU will go into open loop and dump a predetermined amount of fuel. O2 is only after the motor is warmed up and the throttle is anything but WOT.

3mos13
FIXED THE ISSUE!!

got new injectors new connectors and cleaned the fuel rail real nice.

thanks for the tips guys smile.gif
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