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180sx lots of black smoke

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0r340

Post subject: 180sx lots of black smoke

Posted: Sat Apr 08, 2006 1:32 pm

T25

Joined: Sat Jul 30, 2005 5:14 am
Posts: 7
Car: R34

hey guys...

my 180sx is blowing a lot of black smoke . When i drive regularly and then just tap the gas pedal...smoke comes out...

and sometimes when i stop at a set of lights my idle just wants to stall...sounds like its choking...and heaps of black smoke comes out...
what could be the problem..
its a sr20det

could it be a bad batch of fuel?...im gonna try flush out the vortex with ultimate..

any other ideas?...
cheers,

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Blazn' 180

Post subject:

Posted: Sat Apr 08, 2006 1:33 pm

Twin T51

Joined: Mon Aug 01, 2005 11:31 am
Posts: 1075
Location: Gone Rogue...........
Car: S15 SILVIA

What mods you got??

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0r340

Post subject:

Posted: Sat Apr 08, 2006 1:55 pm

T25

Joined: Sat Jul 30, 2005 5:14 am
Posts: 7
Car: R34

jap spec s15 turbo

catch can vented to atmo

fmic

full exhaust

the oil sump is leaking if that helps...

changed oil using motul 8100

and changed the oil and fuel filter....

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Blazn' 180

Post subject:

Posted: Sat Apr 08, 2006 2:31 pm

Twin T51

Joined: Mon Aug 01, 2005 11:31 am
Posts: 1075
Location: Gone Rogue...........
Car: S15 SILVIA

could be a couple of things. some of your o2 senses could not be connecting well enough and there for creating your engine to run too rich, it could also be a bad batch of fuel.

you dont have an after market filter? what does the smoke smell like? is it a strong petrol smell? at your exhaust and engine does it smell like petrol or oil???

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Mandy wrote:

I dont know if i can fit this whole thing in my mouth!

Pro Concept = Where all my fuckups get fixed!!

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Nismodified

Post subject:

Posted: Sat Apr 08, 2006 3:49 pm

Banned

Joined: Fri Apr 12, 2002 11:00 am
Posts: 5993
Location: 2166Reppin'
Car: S13 Silvia S-tune

check your intercooler pipes and BOV if everything is good

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Prince Chiba

Post subject:

Posted: Sun Apr 09, 2006 1:13 am

Twin T51

Joined: Sun Apr 18, 2004 1:04 am
Posts: 1173

sounds like ur backfiring, and at the lights the vaccum is pulling ur bov open.

u have an atmo bov right.get it plumbed and or spring tightened. u might be able ot preload the spring by sticking a fe washers in there

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180sx/s13 stuff for sale- http://forum.silviansw.com/viewtopic.php?t=30110

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0r340

Post subject:

Posted: Mon Apr 10, 2006 1:59 am

T25

Joined: Sat Jul 30, 2005 5:14 am
Posts: 7
Car: R34

i think i might of found the prpblem guys....

my friend poured vortex 95 octane

we did a diagnostic test and it showed 55 so no problems..

and the ecu was most likely remapped for good fuel, cause there is a sticker on the ecu of a tuning place

so hopefully this would be solved when vortex is out of the system

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