Smoking when idle?

[TurboFreak]

So I have a 1989 Supra Turbo. I get to college today and I'm just chillin in my car because I had gotten there a little early. I look out the window and I see a faint smoke coming from my exhaust. I got out looked at my exhaust and there is a small amount of smoke coming out. Its not white or black. But I guess it has more of a grey tint to it. Oh its not a blue either.

PS: Car is running normal and no CEL


Mod list:
Full engine rebuild (Bored .20) 9000 mi. ago
Cometic MHG and ARP Studs 1000 mi. ago
3" exhaust
BIC DDP
Greddy BOV
K&N FIPK
Turbo XS MBC
Greddy Turbo Timer

 

[TurboFreak]

Ok so before my next class I've been searching on here and it seams as if my symptoms point to Bad turbo seals? Last time I checked my IC pipes they had a very tiny bit of oil in them. I read that this could be related? Now its off to class!

 

[MDCmotorsports]

Is the smoke white?

If it is, its the rear turbo seal and or bad valve stem seals.

 

[TurboFreak]

Is the smoke white?

If it is, its the rear turbo seal and or bad valve stem seals.

It hasn't done it since that one instance. But I am getting bad fuel economy so maybe that has something to with it? Unburnt fuel?

 

[johnathan1]

ummm...was it cold outside by any chance?

 

[TurboFreak]

ummm...was it cold outside by any chance?

I though of that but it wasn't too cold. Probably 60-65 degrees....

 

[Big Wang Bandit]

Thats cold hahahaha. Its like 70ish maybe when i get off work at 9-10 and it smokes like a bum.

 

[TurboFreak]

Thats cold hahahaha. Its like 70ish maybe when i get off work at 9-10 and it smokes like a bum.

Hmm I guess your right....Cause I had just driven 15 minutes so that would be some warmed up exhuast comin out. Well I guess we'll say thats what it was...:naughty:

 

[Big Wang Bandit]

Let us know! Its better to be over cautious than ignore everything lol

 

[TurboFreak]

Let us know! Its better to be over cautious than ignore everything lol

Ok so everything is fine but my MPG is really sucking! I filled up yesterday and am down to Half tank! I've driven probably.....75 miles?

 

[Big Wang Bandit]

Thats abnormal.....Might be the cold

 

[TobyCat]

sounds like your car can "see its breath" from the cold But yeah, better to be over cautious then let a BHG go undealt with.

As far as gas milage goes, it could be a number of things. Too thick of oil for temp, timing, really low tire pressure...spare tranny in the back

 

[johnathan1]

Are you letting your engine fully warm up before driving? City driving for short distances eats up gas like crazy, especially when the engine isn't fully warmed up.

 

[starscream5000]

The slight amount of oil in the ic pipes is normal, that's blow by. A catch can usually cures that problem if installed correctly .

 

[ViR2]

I'm having some oil in IC piping too, so there's nothing to worry about? Car throws black smoke (small amount of it) at high rpm's.
Be sure to check your O2 sensor, mine was dead and after replacement fuel consumption droped for about 2liters

 

[starscream5000]

If it's the original piping and everything I'd say it's normal, just wait until you take out that stock intercooler and empty it out! Big surprise there, you won't believe how much blow by can build up in there! wash it out with gas and you're good as new.

 

[SupraDread]

Check all of your vaccum lines and I mean all of them. Disconnected vaccum line can possibly be the cause of your extra fuel consumption. Is your power output the same or do u feel a change in power output? If so check your timing.

 

[Mr.PFloyd]

omfg you shoudl see mysmoke in the mornings lol. in canada, mine looks like a steam locomotive. but when the car warms up a bit the smoke disappears. when im moving haha.