My friend was following behind me (like usual) and he noticed, on the freeway when I was in vtec and shifting, that during my shift black smoke would puff out the exaust. My dad says it might be burt fuel, or it not burning right... I dunno though...

 

It should let out a little,thats just burnt fuel.

 

Welcome to Honda. Sounds normal. I can't think of any broken in Honda that does not blow a little smoke in V-Tech. You'll notice smoke when you first start your engine also. The motor runs very rich when cold. You more than likely have nothing to worry about !

 

Just burning fuel there buddy.

 

On built motors, its even worse. My motor smokes so much that my white bumper is almost black now from all the smoke. Looks nice now/

 

The black smoke is from unburnt fuel. And, in b/w shifts at WOT or high rpm, it causes a temporary rich condition with nowhere else to go and nothing else to do but leave from the exhaust.

 

I believe that in general:

Black smoke = fuel (rich)
white smoke = water (condensation) or perhaps coolant if it's bad
blue smoke = oil

My bumper is black so I'm just hoping it turns my whole car black and I won't have to paint, lol. I also have some blue smoke though

FB

 

sounds like you need a lil welcoming yourself NotRiTe.. its not V-Tech its VTEC.

 

ooooooooops !!! My bad you would think I would catch that since it is on the side of my car. DOHC-VTEC to be tech.


[Modified by NotRiTe20, 12:45 AM 3/2/2002]


[Modified by NotRiTe20, 12:45 AM 3/2/2002]

 

well, I'm glad to see it's normal (yes I noticed smoke when starting it up too), just doesn't say much in the manual about it my friend made a big deal about it like it was bad. You can tell he doesn't know much about cars though but I guess I dont either.

 

blowing smoke and vtec....

if that isn't an oxymoron I don't know what is.... ahahahhhhaaahhaaaa

 

lost a bout 6 quarts of oil in a 700 mile period on my new motot i am so pissed right now

 

Yeah thats a question i have now i just got my car back from the shop on saterday i got my head ported and polish 3angle valve job skunk2 cam gears and skunk2 intake manifold and i notice when i hit vtec and when i shift alot of black smoke comes out of my exhaust is that normal????

 

ttt