Puffs of smoke

[Greg_S]

Went out for a spin today and thought I noticed it about a week ago, when you put your foot down on hard acceleration you get a puff of black smoke out of the back.

Any ideas what could be causing it?

I recently fitted my aquamist kit so wondering if its running too rich now?

Cheers

[aelred]

or the water is decoking it

[Rusty]

have you tried turning off the aquamist and seeing if it still does it?

[Us4]

Black smoke usually means that it is running rich

[Greg_S]

Andy, Obvious as it may sound I havent. LOL.

thanks for the comments guys, i'll give it a try with aquamist turned off and see if it still does it, but it may be as aelred suggest that engine is being decoked.

Its certainly going alot better with it fitted though.

[Rusty]

Yeah turn it off or leave it 500 miles and keep an eye on it. No WB02 to keep an eye on the AFRs?

[fish]

I´ll bump this thread instead of posting a new one. When i put my foot down it puffs out a little bit of black smoke (a little from what i can see in the mirror anyway), the same when standing on idle and blipping the thottle. Every "blip" it puffs a little. No running issues at all, just theese black puffs. No blue or white smike what so ever. Any ideas? Lambda maybe?

[DJones]

I´ll bump this thread instead of posting a new one. When i put my foot down it puffs out a little bit of black smoke (a little from what i can see in the mirror anyway), the same when standing on idle and blipping the thottle. Every "blip" it puffs a little. No running issues at all, just theese black puffs. No blue or white smike what so ever. Any ideas? Lambda maybe?

Sounds normal, however if its heavy black smoke when on boost it would probably be an air leak post MAF, i.e. the ecu fuels it for the air it has measured but some air leaks leaving it rich, hence black smoke.

Hope it helps.

Darren.

[fish]

Nothing on boost, just as soon as i gun it or stand at idle and blip the throttle, it´s not great big clouds of smoke either, just puffs.

[fish]

If no one else has anything to say, i suppose i will just (see pic) then

[Greg_S]

Could be extra fuel going trough too.

[fish]

My thought also, but why? I put a 3" 200cells PERRIN race cat on the car the other day, then went to a mates workshop and checked the emissions but they where all perfect incl lambda so i ruled that one out.