G35 Sedan V35 2003-06 Discussion about the 1st Generation V35 G35 Sedan

black smoke?! help

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Old Aug 24, 2010 | 11:52 PM
  #16  
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meh.... It all depends how you were doing it... If you were at a stoplight and reving it or if you were driving at full throttle.... But your intake should be leaning out since you are not tuned.... But I can understand if it was warm out then the vehicle running a little extra rich! Just keep an eye on it and how is your average fuel mileage? Is it good, decent or bad!
 
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Old Aug 24, 2010 | 11:52 PM
  #17  
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Originally Posted by NFSP G35
Seafoam it, drive the holy hell out of it, and then see if it still does it.
It's called an Italian tune-up
serious? lol
 
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Old Aug 24, 2010 | 11:57 PM
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Originally Posted by Hotdawwgman
meh.... It all depends how you were doing it... If you were at a stoplight and reving it or if you were driving at full throttle.... But your intake should be leaning out since you are not tuned.... But I can understand if it was warm out then the vehicle running a little extra rich! Just keep an eye on it and how is your average fuel mileage? Is it good, decent or bad!
i was at a stoplight and when it went green i hit the gas. reved it pretty high. and it was warm out that day, and pretty good, i mostly do city driving. alota lights and get 400+ kms.
 
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Old Aug 24, 2010 | 11:57 PM
  #19  
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Originally Posted by Roh
serious? lol


yes, no intake will; make your car run lean...
 
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Old Aug 24, 2010 | 11:58 PM
  #20  
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Originally Posted by Roh
serious? lol
Yes. I bet it's just carbon from you puttering around everywhere.
 
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Old Aug 25, 2010 | 01:48 AM
  #21  
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Originally Posted by 4D05G35
yes, no intake will; make your car run lean...
Yes it will... Between a different Plenum (spacer if you have it), non-oem intake, and exhaust will lean it out! Trust me....
 
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Old Aug 25, 2010 | 05:13 AM
  #22  
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Originally Posted by Hotdawwgman
Yes it will... Between a different Plenum (spacer if you have it), non-oem intake, and exhaust will lean it out! Trust me....
Well if we are adding parts to his car that he doesnt have then well S@it yeah he will run lean......those twin turbo's will lean out his car in a heart beat if you dont add some fuel...



lets stick to the facts! He clearly stated that he has a "Stillen intake and a coupe Mid-pipe". The what "ifs" can and will lean his car out, but I seriously doubt the two mods he actually has will.

Not to metion that his problem is most likely not caused by a lean condition.
 
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Old Aug 25, 2010 | 02:15 PM
  #23  
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If your car doesn't burn oil or get crap fuel milage, I wouldn't worry about it.
 
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Old Aug 25, 2010 | 03:08 PM
  #24  
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thanks for the replys! i tried it again today, smoke only came out when i rev'ed up to 6. it only comes out when i rev high. so when im normally driving smoke doesn't come out.
 
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Old Aug 25, 2010 | 05:56 PM
  #25  
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how warm is the engine when you do this? Does this happen when you first start it up or are you driving for atleast 15 minutes
 
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Old Aug 25, 2010 | 10:26 PM
  #26  
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Originally Posted by Hotdawwgman
how warm is the engine when you do this? Does this happen when you first start it up or are you driving for atleast 15 minutes
when i tried it out today, i was driving around before hand.
 
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Old Aug 26, 2010 | 09:34 AM
  #27  
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How dirty is your air filter? It might be clean enough for low speed running but can't flow enough air at high revs.
 
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Old Aug 26, 2010 | 01:31 PM
  #28  
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i'll check that out. what if i got a plenum spacer? i was planning on getting it soon anyways, would that make things worse? i'm gona take it to the shop soon anyways, get it checked out.
 
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Old Aug 26, 2010 | 01:58 PM
  #29  
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youre running rich. I think you might not be burning all your fuel. I had this problem once before in my maxima. I think tuning your car will help.
 
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Old Aug 26, 2010 | 02:36 PM
  #30  
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Seafoam it, change your plugs and you should be fine. It's doesn't sound like anything really to be concerned about.
 
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