Black Smoke

[Bo0oSt]

ok guys i was givin it to my car abit last ntie and my mates in the car behind me reckons when i went for a gear change a big puff of black smoke came out...it wasnt continuous but rather just a single large puff and yeh...

the car doesnt normaly blow a puff of smoke, white or black, except for a lil bit of white smoke earli inthe morn when u first start for only like 10 seconds though n then it doesnt do it at all....

so yeh in total was wondering what the black smoke at gear shift means...

thanks

Edited April 27, 2006 by Bo0oSt

[R31Nismoid]

black is fuel

[TTT]

what mods you got?

[Bo0oSt]

what mods you got?

exhaust, c.a.i and a B.O.V

[123456]

black smoke = running too rich, duno bout puff of smoke only once, perhaps mm like injector blocking then unblocking or ecu messing about

Although my knowledge is rather limited; im sure its not to big a problem

Edited April 28, 2006 by 123456

[konect]

It looks like a puff because you have backed off the accelerator and then punched it again, forcing all the smoke out at once. Black is fine, as stated means ur running rich.

If it was white all the time = bad news.

[TTT]

it's the bov.

if you are happy with black soot on your rear bar and don't mind the puff of smoke and your car doesn't sall when comming to a stop and you don't mind the back fires and shit, then leave it.

if you want all the above fixed, remove the bov and fit the factory one on.

if you want me to tell you why let me know.

[Bo0oSt]

it's the bov.

if you are happy with black soot on your rear bar and don't mind the puff of smoke and your car doesn't sall when comming to a stop and you don't mind the back fires and shit, then leave it.

if you want all the above fixed, remove the bov and fit the factory one on.

if you want me to tell you why let me know.

yeh plz tell me why im not being a smartass or nefin jus yeh wanna know

thanks

[dr00]

basically it vents air to the atmosphere that has been measured by the afm which means fuel has been supplied for that air and its not there anymore. so theres briefly too much fuel and you get a puff of smoke.

[Crimpage]

I understand all that to here... And I know the factory is plumbed back, but im not sure where to, and how it fixes that problem?

Sorry, this is coming from a NA driver who is about to buy a turbo R34 very soon...

Thanks.

Edited April 28, 2006 by Crimpage

[dr00]

the factory valve plumbs it back in on the other side of the turbo, so the air ends up in the same place but doesnt have to force its way back through the compressor wheel to get there...

there are aftermarket plumb backs that are fine too

[TTT]

good man droo.

the plumback pipe basically snakes it's way back to the pipe that is between the air filter and turbo front.