well i have a 91 n/a fc (vert) and now i am having puffy white smoke come out of the exhaust. but its massive smoke. and after like 20mins of leaving the car on it go's away. and the car starts up fine for the next few weeks. then it happends again. any ideas on what it might be?

 

Excess oil in the intake from sitting. It's common.

 

is it a stock exhaust? if so, it might be the material inside the mufflers burning up

 

I'm having the same problem. I don't use the car except on weekends. It start smoking during warm up. After a few minutes driving, it goes away. Is Turbo. Any Idea what could this be?..

 

Lol I have the same problem too. I guess it's a common thing but just scares the crap out of me. It's a lot of smoke though that you guys get too though right? Once your car is warmed up it goes away? What about when you guys floor your car? By the way my car is a s4 n/a. Do you guys still have your OMP? When I bought my car it had already been removed I might just have the 2cylce/gas mixture wrong. Sorry didn't mean to hi-jack your thread.

 

Is a lot and then goes away. Floored just a little but is cause I'm running WAYYYYYYYYY too rich.... I still have my OMP.

 

its a APEXi N1 exhaust. but i drive the car everyday and it has 135,873 miles on it. and yes its a sH@#load of smoke that i cant even see my own hand 2feet away from me when i stand in it.

 

13Bs are notorious for floodng problems, it could be a number of things. might be bad seals or something. or it could be something minor like residual oil from sitting

 

well i just found out the reason y my car was smoking. the rotary was dying.... so now i am doing a full engine re-build.

 

oh also forgot 2 add that seals where bad 2.

 

...that's really vague...

I'm going to guess you were talking about water seals.

Did the coolant level go down mysteriously over time?

 

na. nothing was low lvl. oil was fine. coolant was fine.

 

It is common to see a little smoke from the tailpipes at startup, but that should dissipate after a few seconds--certainly less than a minute. If the smoke is massive and lasts 20 minutes as you say, it is more than a little buildup of fuel-oil from an over-rich startup. If the smoke is truely white and smells kind of sweet, the engine likely has an internal coolant leak requiring an engine rebuild or replacement. Keep a close check on your coolant level to verify.

 

yea i started the rebuild. so now i hope all things go well. thanks for the advice guys. really did help and now i have some more info on my 7.

 

It takes a few minutes to clear. Is kinda light blue colored. I'm also using synthetic oil...

 

i used 2 use that aswell. but then i went back 2 the reg oil. but it didnt help.