most common cause for smoke?
 

what's the most common reason hondas start smoking in vtec? how do u make it not do it. its not bad at all just a tiny bit but its driving me nuts. I've tried to figure it out. I might just hone it and re ring it. 5ust wanna know what yall think the reason is..

Re: most common cause for smoke?
 

what color smoke?

white=coolant=blown HG or possibly cracked sleeve
blue=oil=blown HG or Possibly sleeve OR if mostly on decel possible valve seals
Black=fuel=running pig rich for one reason or another.

Do a compression test. Post numbers for each cylinder and go from there.

Re: most common cause for smoke?
 

white/grey/black smoke? are you boosted?

Re: most common cause for smoke?
 

valve seals were bad in my gsr which caused it to smoke in vtec

Re: most common cause for smoke?
 

fire...

Re: most common cause for smoke?
 

RINGS RINGS RINGS

Re: most common cause for smoke?
 

Is the ECU stock?

Re: most common cause for smoke?
 

motor is N/A. ecu is a P28 supposedly tuned for the car. has typical lil add ons as follows intake, intake manifold, header and skunk 2 cat back. nothing much. head is the quietist I've ever herd on b series. color is between black and like a brownish. head is spotless on inside.

Re: most common cause for smoke?
 

So based on the color of the smoke, and my standard assumptions about tuning, I'd say that the VTEC fuel map is probably pretty rich. There are two fuel maps, and the ECU switches to the other map when it engages VTEC.

Re: most common cause for smoke?
 

lets say its blue ( my friends car is smoking in vtec also) what would cause that. it does it starting at about 6500 on to 8200 its not to bad just enough to when u look in rear veiw u can see it. and it kinda clears up after 3rd gear? any ideas.